I mean, if you don't like Ubuntu much and you can also use the terminal, maybe try out Debian? Packages are a little dated but if you are willing to live with it, it's a great experience. I have some unstable repos added to my install for newer packages, and its been a good experience with 0 issues so far. I mainly use the GUI and its also been easy to use and super stable, although I suppose Pop and Mint would still be easier.
It's not exactly Ubuntu based, but its worth a shot.
I was trying to screenshot a picture on my Pixel in the YouTube app, but a recurring bug just completely froze my phone. I tried multiple ways of turning it off (I didn't know about the forced restart at the time, which is done by holding the power button down for 30 seconds ) and eventually it accidentally called emergency services. The problem is that I couldn't tell them it was a false alarm because...well, my phone was frozen. Was very embarrassing when the dispatcher arrived suddenly, although he was very understanding about it.
After restarting my phone, I immediately turned off the shortcut. Never again.