Upgraded to Pop!_OS 24.04
I was going to ordering my first Magic: The Gathering proxy printings when I ran into trouble with the recommended program. Glibc wasn't the correct version. I did some digging and discovered Pop!_OS was due for a full OS upgrade.
Took the plunge, and it's not bad! The COSMIC desktop environment hasn't been too much of a change. I've been able to tweak it enough to keep me satisfied, and I ran some tests for a friend to see how the UI interacted with game windows. It passed.
There were two speedbumps. The old version of Slack I had wasn't compatible so I needed to install the Flatpak. Also, I needed to redownload the MEGAsync app for my cloud backup. It can't find the system tray in this new environment so it takes up a chunk of my dock, but that's fine.
There's quite a bit of customization that I can do, but I've done enough now to do all of my major tasks. Well done System76!