Ubuntu, because snaps break shit and don’t work right a lot of the time, also they left people hanging with 32 bit support which isn’t great (for being a Legacy OS for weak computers it’s not a great look for them, or all the Linux distros that followed them).
There were a lot of problems with Fedora and CentOS, none of them as bad as Ubuntu though. Most were either instability or software availability due to lacking RPM versions of the software I needed.
Arch itself hasn’t given me many problems but it is ideologically problematic for a lot of reasons (mainly the elitism) and it is also a rolling release which isn’t great if you don’t like being a guinea pig and getting software before all the bugs have been ironed out.
Most of the people who shill for DRM are such sad and pathetic trolls that they usually get banned from most sensible communities and platforms, there are still a good amount on Reddit but even there they often get buried with downvotes.