I'm not the original commenter but I've had this issue where the laptop reboots instead of sleeping properly. Keeps happening, not sure why, and many others have had it too on forums.
I found that, paradoxically, putting a laptop explicitly to sleep (apple menu/sleep) before leaving the office helps ~80% of the time (i.e. in the morning it will not reset with kernel panic).
Early (cca 10.15.0 - 15.10.2) there was a problem mounting SMB share once it has been unmounted. Having to reboot just to get it mounted is not a fun.
Scanning with Samsung MFPs in color into PDFs is still broken, but this one is since 10.14 actually. 10.15 just made it worse, because the Samsung scanning app that could be used instead of Image Capture is 32-bit, so the workaround doesn't work anymore.
The main issues seem to be around performance (random pauses), audio problems, suspend/resume. It's not just anecdotal (as someone else suggested), but also from observing the large number of people reporting the same problems on various support forums.
Most of my problems have been on older machines, so perhaps their QA has tanked.
No, I mean, those are very reasonable things to be upset about, I definitely get it, and it shouldn’t be like that no matter the machine. If it’s ok’ed to run the version, it should run without a hitch.
It was pure curiosity on my part, because I haven’t really experienced any major bugs or problems.