Well, the simplest way to go if you want opensuse-like rollbacka would be to just run opensuse… if you need ubuntu-specific stuff (you don’t) there’s distrobox.
BTW I’ve been running tumbleweed for a few years now and didn’t roll back once… IDK if the craze about rollbacks and immutable distros (arguments in favour of which often boil down to “easy rollbacks”) is justfied or not.