Hmm, I have a couple of laptops with Ubuntu on them, they aren't my primary personal (or work) machines, but I generally haven't had trouble upgrading them - I

Hmm, I have a couple of laptops with Ubuntu on them, they aren't my primary personal (or work) machines, but I generally haven't had trouble upgrading them - I did one today, via do-release-upgrade -d and it worked fine (though the FF snap, while maybe ok in theory, meant that it had lost all my tabs / bookmarks / etc., uninstalling and installing via apt got me the deb version which did pull those all in from my profile).