I had a Asus mobo which only had a TPM 1.2 and a non-approved CPU. I found a TPM 2.0 for my mobo which was seen correctly, so I went ahead with the MS advice to add the AllowUpgradesWith UnsupportedTPMOrCPU registry entry. That did not allow installation from the installation assistant, but...
I switched to Win11 because two of my four computers on Win10 refused to see one another on my network, despite hours of playing about with everything I could think of. On installing Win11 on these two computers they immediately saw and connected to the other computers. At last!
Bob Frost