I only use containers when I must. The big advantage you loose not using say “apt” on Debian systems and Ubuntu too is integration and the distributions security team efforts to keep you updated. Nor do they usually come from the somewhat secure distribution repo and update path.

Ubuntu your stuck with some snaps and they do support some of those. They create a bunch of loopback devices and mount points which is just messy. I have had issues with the Joplin snap too. Seems to just forget stuff presumably after updates. Frankly it is kind of nuts to use snaps when you do not have to.

Well for Joplin I had to use something. So I used an AppImage. This is because the developers issue them, and I can choose when I manually update. Just more control. Plus on my Debian version I just did not have new enough versions of either Snap or Flatpack to install current images. There are some messy version problems and they may not keep up on aging distributions.

So count me as a skeptic on all this container stuff when you can just use normal native packages. I do think having access to say AppImages is handy as a last resort.