AppImage seems like the best replacement then. I've loathed Snap since it first appeared on my horizon and I installed LibreOffice with it and that snap image showed up in my mounted drives forever. I was a big fan of Canonical/Ubuntu for years and switching to Debian has not been without pain points but at least I have more control of my computer. Pop! OS and Linux Mint seem like good Linux desktop alternatives to Ubuntu at this point if you don't want to use Debian.

Interesting! That must be something relatively new, as it at least looked like there was nothing back then when I looked up Appimage.