Settings reversion is a constant peeve. Seriously, how many times to I have to set the height of the task manager. I have one screen that runs at the same native resolution it's always ran at. Tell me how hard it is to preserve the fucking setting? That's just the most recent annoyance but it's constant things like that where an update reverts a setting or two. No, it's not a distro thing. No, my package manager is not walking all the /home/*/.config trees--I checked.
Less annoying is the constant "how to turn off new intrusive feature" quests that occasionally you have to do. Setting something once and forgetting about it is tolerable. It's having to do it more than once that sets me off.
File indexing, a feature that I never asked for, seems finally under control. It's finally not sending me looking for the off button. Although, the number of times I've had to turn it off again after a new release? I really wish there was more respect for my preferences. Why is it on again??????? Good job fixing it but, jesus christ, why is it on again?
I'd like to not have to constantly set my audio output back to "Analog Surround 5.1 Output", turn the Mic off, and then turn the subwoofer back down. But this is Linux. If the last 20+ years have taught me anything it's that audio will always suck on Linux. Always. Forever. When someone replaces pipewire, in a few years, it will still suck. (BTW, bluetooth touches audio... connect the dots.)
But crashes? For me, they seem rare now. Fantastic job there.