First you will need to start looking at all ZEN+ Ryzen APUs since they are all compatible with Windows 11.
Zen+ APU processors are all 3000/4000/5000 series APU Processors.
According to this tech site from a AMD Employee concerning fTPM: https://wccftech.com/most-modern-pcs-will-have-no-issues-running-windows-11-amd-intel-cpus-with-mini...
"According to AMD's Robert Hallock, even if you don't have TPM 2.0, most Ryzen motherboards have fTPM 1.2 at a minimum which should work with Windows 11 operating system with ease. Also, one thing to note is that the upcoming insider build only runs on TPM 2.0 hardware but the Windows 11 official release will support TPM 1.2 hardware too.
Earlier this year, AMD disclosed mitigations related to potential security vulnerabilities for AMD firmware Trusted Platform Module (fTPM) versions v.96, v1.22, and v1.37. AMD believes the fTPM vulnerabilities only apply to some of its client processors as fTPM is not enabled on AMD server, graphics and embedded. AMD has delivered a patch to PC manufacturers to address the issue.
Microsoft Windows users can verify their fTPM version and find instructions to clear the TPM at: https://docs.microsoft.com/en-us/windows/device-security/tpm/initialize-and-configure-ownership-of-t...
AMD has recommended that PC manufacturers qualify and release an updated BIOS integrating the fTPM patch, as appropriate, into production at the next available opportunity and provide guidance to end users to apply fixes as defined based on the product. For fTPM v1.37, AMD has notified PC manufacturers that they should consider updating the system BIOS ahead of clearing the fTPM to help protect generated platform-level keys. via AMD
There are also going to be several users who could be running TPM 2.0 / TPM 1.2 / fTPM 1.2 CPUs but failing to pass the Windows 11 requirement check. This could simply be due to the fact that the technology is disabled through the BIOS and needs to be enabled. A BIOS firmware update would also be required for some older platforms. Sure that isn't much of a deal for PC enthusiasts & DIY builders but we have to acknowledge that there are a majority of users out there who don't know how to do that and a more simplified way of doing this should be incorporated by Microsoft and PC motherboard manufacturers."
