I wouldn't think anyone in 2021, would think that Microsoft, Google, or others, would release a bug free operating system. Operating systems are incredibly complex, with an unhealthy mixture of old code, short cuts and just plain messy coding.
Many on forum are quick to say that Apple's software releases are buggy
Yes, partly because Apple tends to promote themselves as superior in everyway. If you're going to say how much better you are, then you better deliver on that promise.
I've been out of the loop on macOS versions for the past couple of years, but it seems there were a lot of complaints for Big Sur when it was released. We'll have to wait and see about this version that's going to be released soon (or has it been released?) For me, what's surprising is that MS' first public release was as stable as it was, and by and large I've not heard too many complaints about issues - short of this for Ryzen users. I'm sure there will be other bugs being discussed/complained about - no question.