Hello Robert Helmig
Azure Virtual Desktop (AVD) supports a multi-tenant architecture, which allows service providers to host multiple customers on a single deployment of AVD. This means that a single AVD deployment can be used to provide virtual desktops and applications to multiple organizations, each with their own set of users, desktops, and applications.
To set up a multi-tenant deployment of AVD, you need to create a host pool for each tenant, and then assign users and applications to each host pool. You can use the Azure portal, PowerShell, or the Azure Virtual Desktop REST API to manage your multi-tenant deployment.
For more information you can refer to the following documentation:
https://learn.microsoft.com/en-us/azure/architecture/guide/multitenant/approaches/compute
https://learn.microsoft.com/en-gb/azure/architecture/example-scenario/wvd/multi-forest
https://techcommunity.microsoft.com/t5/azure-virtual-desktop/wvd-with-multiple-ad-tenant/m-p/3655560
https://techcommunity.microsoft.com/t5/azure-virtual-desktop/multiple-wvd-tenants-in-the-same-subscription/m-p/1258397