There is literally not a single useful comment here.
You have packages from outside the official main repo, in the universe repo.
You are using a stable Distribution so packages are frozen and need backported security updates.
You dont get them for the optional universe repos, but if you give them a bit of money (or afaik Ubuntu pro is even free for a few devices) then they will also support these 3rd party packages.
It is an optional service, they warn you that you use outdated packages, and offer a solution.
I dont use Ubuntu and Snaps are crap, but this is totally fine.
they should have included the security patches from the get-go
I dont know how Ubuntu does that stuff, but universe is community supported only. It is required for many normal packages, so yes you could say their service is not good enough but hey, its free Software.
If you dont pay a cent you have like nothing to complain