Open-source tool to see if your current hardware can run Windows 11.... well, unless Microsoft changes the rules. I am still hopeful that they will relax some of the requirements. Particularly, support for older-generation CPUs that would otherwise comply anyway.

They had to take down their own tool because it wasn't giving out any useful information.

GitHub - rcmaehl/WhyNotWin11: Detection Script to help identify why your PC isn't Windows 11 Release Ready

My main desktop passed after enabling AMD fTPM and Secure Boot.