This is the answer from workstation. From the W11 22H2(Preview) multisession for AVD is beneath that again....
A bit further in troubleshooting learns that placing the CloudKerberosTicketRetrievalEnabled =1 within registry on homesystem allows access to some DFS shares as follows:
DFS shares hosted on AD Servers work on W11 22H2 single system
DFS shares hosted on AD Servers do not work on W11 22H2(preview) multisession system
DFS shares hosted on Azure Files with AD authentication do not work on any of these two testing systems
The shares themselves straight from Azure Files with AD authentication also do not work on any of these two testing systems
DFS shares hosted on Azure Files with AAD authentication do work on both of these two testing systems
The shares themselves straight from Azure Files with AAD authentication do work on both of these two testing systems
+----------------------------------------------------------------------+
| Device State |
+----------------------------------------------------------------------+
AzureAdJoined : YES
EnterpriseJoined : NO
DomainJoined : NO
Virtual Desktop : NOT SET
Device Name : LP-H0DX693
+----------------------------------------------------------------------+
| Device Details |
+----------------------------------------------------------------------+
DeviceId : is there
Thumbprint : is there
DeviceCertificateValidity : [ 2022-02-15 10:03:26.000 UTC -- 2032-02-15 10:33:26.000 UTC ]
KeyContainerId : is there
KeyProvider : Microsoft Platform Crypto Provider
TpmProtected : YES
DeviceAuthStatus : SUCCESS
+----------------------------------------------------------------------+
| Tenant Details |
+----------------------------------------------------------------------+
TenantName : Innovam
TenantId : is there
AuthCodeUrl : https://login.microsoftonline.com/is there/oauth2/authorize
AccessTokenUrl : https://login.microsoftonline.com/is there/oauth2/token
MdmUrl : https://enrollment.manage.microsoft.com/enrollmentserver/discovery.svc
MdmTouUrl : https://portal.manage.microsoft.com/TermsofUse.aspx
MdmComplianceUrl : https://portal.manage.microsoft.com/?portalAction=Compliance
SettingsUrl : is there
JoinSrvVersion : 2.0
JoinSrvUrl : https://enterpriseregistration.windows.net/EnrollmentServer/device/
JoinSrvId : urn:ms-drs:enterpriseregistration.windows.net
KeySrvVersion : 1.0
KeySrvUrl : https://enterpriseregistration.windows.net/EnrollmentServer/key/
KeySrvId : urn:ms-drs:enterpriseregistration.windows.net
WebAuthNSrvVersion : 1.0
WebAuthNSrvUrl : https://enterpriseregistration.windows.net/webauthn/is there/
WebAuthNSrvId : urn:ms-drs:enterpriseregistration.windows.net
DeviceManagementSrvVer : 1.0
DeviceManagementSrvUrl : https://enterpriseregistration.windows.net/manage/is there/
DeviceManagementSrvId : urn:ms-drs:enterpriseregistration.windows.net
+----------------------------------------------------------------------+
| User State |
+----------------------------------------------------------------------+
NgcSet : NO
WorkplaceJoined : NO
WamDefaultSet : YES
WamDefaultAuthority : organizations
WamDefaultId : https://login.microsoft.com
WamDefaultGUID : {is there} (AzureAd)
+----------------------------------------------------------------------+
| SSO State |
+----------------------------------------------------------------------+
AzureAdPrt : YES
AzureAdPrtUpdateTime : 2022-10-10 12:41:28.000 UTC
AzureAdPrtExpiryTime : 2022-10-24 12:41:27.000 UTC
AzureAdPrtAuthority : https://login.microsoftonline.com/is there
EnterprisePrt : NO
EnterprisePrtAuthority :
OnPremTgt : YES
CloudTgt : YES
KerbTopLevelNames : .windows.net,.windows.net:1433,.windows.net:3342,.azure.net,.azure.net:1433,.azure.net:3342
+----------------------------------------------------------------------+
| Diagnostic Data |
+----------------------------------------------------------------------+
AadRecoveryEnabled : NO
Executing Account Name : INNOVAM\MBR, ******@innovam.nl
KeySignTest : PASSED
DisplayNameUpdated : Managed by MDM
OsVersionUpdated : Managed by MDM
HostNameUpdated : YES
Last HostName Update : SUCCESS
Client Time : 2022-10-09 08:38:41.000 UTC
Request ID : fb5002ac-d7f4-435d-928f-c647e0ef97e8
Server Time : 10-09-2022 8:38:42Z
HTTP Status : 200
Server Message : The attribute 'hostnames' value(s) were successfully updated
+----------------------------------------------------------------------+
| IE Proxy Config for Current User |
+----------------------------------------------------------------------+
Auto Detect Settings : YES
Auto-Configuration URL :
Proxy Server List :
Proxy Bypass List :
+----------------------------------------------------------------------+
| WinHttp Default Proxy Config |
+----------------------------------------------------------------------+
Access Type : DIRECT
+----------------------------------------------------------------------+
| Ngc Prerequisite Check |
+----------------------------------------------------------------------+
IsDeviceJoined : YES
IsUserAzureAD : YES
PolicyEnabled : NO
PostLogonEnabled : YES
DeviceEligible : YES
SessionIsNotRemote : YES
CertEnrollment : none
PreReqResult : WillNotProvision
For more information, please visit https://www.microsoft.com/aadjerrors
The W1122H2(Preview) multisession:
+----------------------------------------------------------------------+
| Device State |
+----------------------------------------------------------------------+
AzureAdJoined : YES
EnterpriseJoined : NO
DomainJoined : NO
Virtual Desktop : NOT SET
Device Name : AZ-WVD-W11P-1
+----------------------------------------------------------------------+
| Device Details |
+----------------------------------------------------------------------+
DeviceId : is there
Thumbprint : is there
DeviceCertificateValidity : [ 2022-10-08 16:38:05.000 UTC -- 2032-10-08 17:08:05.000 UTC ]
KeyContainerId : is there
KeyProvider : Microsoft Platform Crypto Provider
TpmProtected : YES
DeviceAuthStatus : SUCCESS
+----------------------------------------------------------------------+
| Tenant Details |
+----------------------------------------------------------------------+
TenantName : Innovam
TenantId : is there
AuthCodeUrl : https://login.microsoftonline.com/is there/oauth2/authorize
AccessTokenUrl : https://login.microsoftonline.com/is there/oauth2/token
MdmUrl : https://enrollment.manage.microsoft.com/enrollmentserver/discovery.svc
MdmTouUrl : https://portal.manage.microsoft.com/TermsofUse.aspx
MdmComplianceUrl : https://portal.manage.microsoft.com/?portalAction=Compliance
SettingsUrl : is there
JoinSrvVersion : 2.0
JoinSrvUrl : https://enterpriseregistration.windows.net/EnrollmentServer/device/
JoinSrvId : urn:ms-drs:enterpriseregistration.windows.net
KeySrvVersion : 1.0
KeySrvUrl : https://enterpriseregistration.windows.net/EnrollmentServer/key/
KeySrvId : urn:ms-drs:enterpriseregistration.windows.net
WebAuthNSrvVersion : 1.0
WebAuthNSrvUrl : https://enterpriseregistration.windows.net/webauthn/is there/
WebAuthNSrvId : urn:ms-drs:enterpriseregistration.windows.net
DeviceManagementSrvVer : 1.0
DeviceManagementSrvUrl : https://enterpriseregistration.windows.net/manage/is there/
DeviceManagementSrvId : urn:ms-drs:enterpriseregistration.windows.net
+----------------------------------------------------------------------+
| User State |
+----------------------------------------------------------------------+
NgcSet : NO
WorkplaceJoined : NO
WamDefaultSet : YES
WamDefaultAuthority : organizations
WamDefaultId : https://login.microsoft.com
WamDefaultGUID : {is there} (AzureAd)
+----------------------------------------------------------------------+
| SSO State |
+----------------------------------------------------------------------+
AzureAdPrt : YES
AzureAdPrtUpdateTime : 2022-10-10 13:17:09.000 UTC
AzureAdPrtExpiryTime : 2022-10-24 13:17:08.000 UTC
AzureAdPrtAuthority : https://login.microsoftonline.com/is there
EnterprisePrt : NO
EnterprisePrtAuthority :
OnPremTgt : YES
CloudTgt : YES
KerbTopLevelNames : .windows.net,.windows.net:1433,.windows.net:3342,.azure.net,.azure.net:1433,.azure.net:3342
+----------------------------------------------------------------------+
| Diagnostic Data |
+----------------------------------------------------------------------+
AadRecoveryEnabled : NO
Executing Account Name : INNOVAM\MBR, ******@innovam.nl
KeySignTest : PASSED
DisplayNameUpdated : Managed by MDM
OsVersionUpdated : Managed by MDM
HostNameUpdated : YES
Last HostName Update : NONE
+----------------------------------------------------------------------+
| IE Proxy Config for Current User |
+----------------------------------------------------------------------+
Auto Detect Settings : YES
Auto-Configuration URL :
Proxy Server List :
Proxy Bypass List :
+----------------------------------------------------------------------+
| WinHttp Default Proxy Config |
+----------------------------------------------------------------------+
Access Type : DIRECT
+----------------------------------------------------------------------+
| Ngc Prerequisite Check |
+----------------------------------------------------------------------+
IsDeviceJoined : YES
IsUserAzureAD : YES
PolicyEnabled : YES
PostLogonEnabled : YES
DeviceEligible : NO
SessionIsNotRemote : NO
CertEnrollment : none
PreReqResult : WillNotProvision
For more information, please visit https://www.microsoft.com/aadjerrors