I started using a snap to run Emacs 28 on my Ubuntu 22.04.2 LTS system. The snap is maintained by a Canonical employee, and I like it better than any of the other ways I have used to get more bleeding-edge versions of software in the past, such as using a random Personal Package Archive (PPA) or building from source myself.
Would I rather have the deb package be up-to-date? Sure. But when I've used distributions that try to stick closer to the bleeding edge everywhere, I've had bad experiences with stuff breaking. This lets me keep a stable, well-tested distribution for everything except for the one package I want to be newer.
I can't compare to Flatpak or AppImage because I've never used them.
Would I rather have the deb package be up-to-date? Sure. But when I've used distributions that try to stick closer to the bleeding edge everywhere, I've had bad experiences with stuff breaking. This lets me keep a stable, well-tested distribution for everything except for the one package I want to be newer.
I can't compare to Flatpak or AppImage because I've never used them.