Good to hear you're considering it. It may be worth looking into appimages as well. They don't seem to focus as much on security, but perhaps their isolation is better? Flatpaks seem to share quite a bit with each other, and I worry it may create another X11-situation. Flatpaks may still be better overall, though, if they can also have good isolation.
I doubt you should even bother with snaps. They don't seem to be that well supported outside of Ubuntu, and I doubt they will ever be.
I doubt you should even bother with snaps. They don't seem to be that well supported outside of Ubuntu, and I doubt they will ever be.