Ubuntu is not following mainstream anymore, which is a bad thing. They are the only ones pushing snaps, while every other distro prefers Flatpaks. Their store is closed off and problematic, and the sandboxing only works on distros using AppArmor.
So they are pushing basically new Ubuntu repos, and just dont stop.
Also they theme GNOME apps like hell, have a strange appstore nobody needs (GNOME Software can handle packagekit, flatpak and snaps).
They ALSO now highly push Flutter instead of GTK for whatever reason, which brings inconsistencies, and flutter is nearly abandoned by Google.