I've used the regkey hack years ago, but recent ones seemed more difficult to bypass. I ended up using a USB stick as well and formatted it with Rufus which has all the options built in to bypass it all. It worked 100% of the time the 3 times I used it. Before doing that 2 systems just wouldnt complete and always ended up giving an error at some point. One of my older systems at work is a Dell Precision which came with a Xeon processor which is normally a server CPU and windows 11 doesnt support server at all so those CPUs aren't compatible. Been running 11 on it 2 years now and is completely stable. The tower is almost 10 years old now, but I dont want to give it up because I know ill never get anything nearly as powerful as a replacement today haha.

I don't think it actually needs the tpm 2.0 or even 1.1 as it's only used for automatic bitlocker decryption