When it comes to Debian, you might find yourself getting more up-to-date software with the backports repo, particularly when it comes to the kernel. It’s not a large selection of packages, but there’s some useful stuff in there.
You can also use apt pinning, but that requires maintenance and makes it fairly easy to break everything.
Good idea might be to keep Timeshift on a decent schedule and if you mess something up, run through an older snapshot.
Alternatively, OpenSUSE Tumbleweed is a good rolling release that has full integration with btrfs, so mess up an update and just boot into an old snapshot. Can also choose any DE (that’s in their repos, at least) on installation. It doesn’t require much maintenance at all. Very unlikely to break regardless.