I don't disagree that snaps aren't the best thing but Ubuntu does allow you to turn off auto updates now if you want and although it took a little extra setup, I also use the .deb version of Firefox right now. It works well. I'm running Kubuntu 24.04.

For servers especially, Ubuntu can be a really good option. I've heard some people actually like snaps for servers because the auto update so its one less this to worry about. Yea you can setup a script to do that too but its a nice to have for some folks.

All that said, its not for everyone, but for servers I think Ubuntu is a good option just for compatibility alone, not to mention the documentation, tutorials, etc.

Thats just my opinion though.