The ISO from the MCT (Media Creation Tool) has an Install.esd. Where are you seeing an Install.wim?
(1) Right-click each ISO you've got, & select "Mount".
They will get drive letters, say F: & G: in File Explorer.
When done examining them, right-click the letters, & select "Eject".
(2) Look in the Sources folders, & I think you will see they are Install.esd.
But -- if you've really got an Install.wim -- use that in the DISM below instead.
Here is how to examine them further...
(1) Type "CMD" into Search, & click "Run as Administrator".
(2) Copy/paste the following for each mounted ISO.
My letter was F:, use the letters you got instead...
DISM /Get-WimInfo /WimFile:F:\Sources\Install.esd
DISM /Get-WimInfo /WimFile:F:\Sources\Install.esd /Index:1
Use Ctrl-A & Ctrl-C to copy the screen, Then paste it to us.
Here is what I get for an ISO of version 20H2 which I just made using the MCT....
Microsoft Windows [Version 10.0.19042.630]
(c) 2020 Microsoft Corporation. All rights reserved.
C:\WINDOWS\system32>DISM /Get-WimInfo /WimFile:F:\Sources\Install.esd
Deployment Image Servicing and Management tool
Version: 10.0.19041.572
Details for image : F:\Sources\Install.esd
Index : 1
Name : Windows 10 Home
Description : Windows 10 Home
Size : 15,496,272,979 bytes
Index : 2
Name : Windows 10 Home N
Description : Windows 10 Home N
Size : 14,709,899,819 bytes
Index : 3
Name : Windows 10 Home Single Language
Description : Windows 10 Home Single Language
Size : 15,463,621,876 bytes
Index : 4
Name : Windows 10 Education
Description : Windows 10 Education
Size : 15,710,651,056 bytes
Index : 5
Name : Windows 10 Education N
Description : Windows 10 Education N
Size : 14,961,039,669 bytes
Index : 6
Name : Windows 10 Pro
Description : Windows 10 Pro
Size : 15,743,641,051 bytes
Index : 7
Name : Windows 10 Pro N
Description : Windows 10 Pro N
Size : 14,964,257,001 bytes
The operation completed successfully.
C:\WINDOWS\system32>DISM /Get-WimInfo /WimFile:F:\Sources\Install.esd /Index:1
Deployment Image Servicing and Management tool
Version: 10.0.19041.572
Details for image : F:\Sources\Install.esd
Index : 1
Name : Windows 10 Home
Description : Windows 10 Home
Size : 15,496,272,979 bytes
WIM Bootable : No
Architecture : x64
Hal : acpiapic
Version : 10.0.19041 <<<I wanted to see 10.0.19042, but OK, fine.
ServicePack Build : 572
ServicePack Level : 0
Edition : Core
Installation : Client
ProductType : WinNT
ProductSuite : Terminal Server
System Root : WINDOWS
Directories : 23791
Files : 95060
Created : 10/9/2020 - 3:58:50 PM
Modified : 11/23/2020 - 12:30:55 AM
Languages :
en-US (Default)
The operation completed successfully.
C:\WINDOWS\system32>