I just created a brand new Windows 11 ARM 22H2 Professional 22621.1702 VM on the Tech Preview running on Ventura 13.4.1 c . The VMware Tools are installed from the Tech Preview. I was able to turn on Bitlocker successfully.

I also opened the TPM Management app in the VM and see that the TPM manufacturer is VMW (which I assume is VMware) version 2.101.0.1.

Can you give some additional details on the VM that you created? I wouldn't think that Sonoma would have an impact on how VMware's vTPM behaves.