There's too much TPM/SecureBoot/Enroll key hoops you have to jump through that a lot of distros just haven't bothered with.
If I'm being completely real, I'd be running FreeBSD 15. I just could not get a working nvidia driver going in 15 and get a working X installation. Supposedly 15.1 fixes it, we'll see in June. I've always preferred the BSD design, fs layout, etc, and I would love to have a FreeBSD desktop with a wine 11 install that actually plays games.. the dream!