Same here. I had the same problem with an older AMD system. In my case, the motherboard just didn't have a TPM module at all, so I had to use a workaround to install. Good luck!
You could also try using the Windows 11 Installation Assistant and bypass the checks with a registry edit. Another option is creating an install USB with a script that removes the TPM requirement.
Yeah, that registry edit trick can work. Just be sure to back up your data first since bypassing checks isn't officially supported. Let me know if that works.