Yes, AMD was replacing Ryzens that had that bug. I'm not sure if they are anymore though. But it's 100% a confirmed thing. I have not heard anything Zen 2 and newer having this problem and have no experienced any Linux issues with my 3000, 5000 and 7000 series CPUs.
I think the point a lot of people are making is that because it's a fresh install it might have been quicker and faster to just reinstall versus whatever kind of checking and troubleshooting you'd have to do with the permissions.
I like daaaaaaaaaaaaaaaaaata
-- Microsoft