I've been using Ubuntu 18.04 since 2019 basically because I have so many things set up just right for what I do that I hesitate to move away from it.
But in general I prefer Ubuntu or Ubuntu-based distros.
Pop!_OS is very good though. I really think it's a good place for new people to start, but the built-in tiling & stacking window manager mode and their other desktop-management features are fun for people who come from other distros.
I've always liked Elementary OS too, have you ever given it a shot? Their apps, desktop, and App-Center full of developer apps for Elementary make it very nice. Especially for a distro that started as "Ubuntu with a MacOS theme".
I wanted to go back to 18.04 because it was much more stable and I liked it. I haven't tried Elementary OS but will check it soon when I have the time.
The thing about 20.04 I disliked is that they made the Ubuntu Software Center a Snap package, and removed the ability to add Flatpak support from it. I have an extension on 18.04 that lets me get all 3 package types from Ubuntu Software.
Also Gnome Software Center(which is included in Pop-OS) has the option to download from all 3 sources.
Elementary's App-Center has hundreds of apps from developers that are made just for Elementary, and they also have Flatpaks available.