First of all, I just want to say thanks. Cura is indeed an awesome software, and thank you for making this free for everyone. I have it running flawlessly on my laptop, and it works 100% OK and fast.
That said, and as a past dev and now a somewhat delivery manager these days, if users are experiencing issues related to a particular hardware this should be flagged somehow. A little warning or note on the download page would do, this would save many hours for everyone; I wouldn't spend hours trying versions, reading through numerous threads, and you would have to reply to multiple threads/issues flagged.
On these (Ryzen) issues, I've never experienced any. The only issues I've ever had on this machine have been with Cura. Either by trying to use it normally, or by running on a VM, which crashed VirtualBox on some Linux dists (got it running now on lubuntu).
All of these posts are also more than 1 year old.
I still think that my initial comment still holds, you need a better (exhaustive) QA process. I know, QA sucks, but on the other hand it looks like you need different platforms/systems to test your software, so... new toys 😄.
Or maybe create some beta/alpha groups, etc.
Anyway, Happy New Year, and once again thank you for your work.