You're going to see a lot of issues on Linux boards because people go to then for help. I've been running Linux since 2020 and though there have been hiccups, its been remarkably reliable. Having said that, when there ARE issues, it can take some digging to find answers.
Is it not stable
Moreso than Win 11, in my experience. I use Win 11 at work and I've needed a system wipe twice. Once because networking just... stopped... and once because appx apps decided not to load.
Ongoing issues
Plugging PopOS as a good "set and forget" distro that is easy to grasp. The workflow is very MacOS and the tweaks they've made make for a friendlier interface v Ubuntu, IMO.