Did you get [sufficient] answers to this?
I didn’t respond further as I don’t see that I could provide more.
- I don’t have a crystal ball, so can’t gaze into the future & see what (if any) changes Ubuntu will make into the future.
- On a thinkpad x201 with only 4GB of RAM I initially removed all snap packages (20.04 or focal) and used the deb packages of
chromium
and it remained that way for much of the time it ran focal. I don’t recall any issues without snapd, but that was a focal install and not jammy, and past isn’t always a great indicator for what will occur in the future. That install is now jammy but I’ve returned to using snap packages on it (I really didn’t notice any improvement with only deb packages in performance) - if problems occur (see first no crystal ball comment) I don’t see them as any real issue anyway; the most obvious I already mentioned which you saw & quoted anyway, but how difficult or problematic an issue is depends on our skill level, how pressured we are for time when it occurs etc which will vary
- Not really asked, but I don’t see Lubuntu as being any different in this regard to other Ubuntu flavors. Snap packages can remove the packaging time significantly thus some use them for welcome or flavor-specific apps, so removing them will impact the users ability to use those apps/features but that should be obvious.