The negatives, of snap, at least, was that most apps became 'un-skinned,' and looked like unthemed things you'd launch directly in an X11-session so they look like their base-worst, and so on, in my experience. - The first Ubuntu LTS I tried that had snap even had problems with the [snap-packed] calculator, which for some dumb reason was a snap-app instead of a .deb, I'm talking the main included/internal calc-app, and the VLC snap-package I tried was totally unskinned, due to being snap'ped I suppose, as the ppa and etc .deb versions of VLC certainly was and looked better.

Now I am on EndeavourOS, an arch-based distro, easy to use and set up, and this is due to snap being introduced in Ubuntu directly, plus not wanting the ppa chase-game, and et cetera. It's just an/my opinion(s), and certainly not a pointer. Just being objective from my own perspectives, here. Got nothing against Ubuntu or anything, it's a free world, thankfully, still.