Ubuntu works just fine. But Canonical has an iffy track record.

Some years ago they bundled an Amazon app with the plain install. For a while it also integrated with the system search by default. So if you searched for a file on your machine, then your search query would also be sent directly to Amazon. You could opt-out but it was enabled by default. Later it was changed to be an opt-in, and I believe it's entirely removed today.

Besides that they often push technologies that isn't really fostering the community. When Wayland was slowly gaining traction, Canonical suddenly announced and aggressively pushed Mir, instead of collaborating on Wayland, the preferred making their own alternative.

These days they are pushing their Snaps pretty hard. So back in the day if you apt-get install firefoxyou would get a regular native Firefox install. Today if you do the same it will instead install a Snap of Firefox. Snaps are also a bit funny... Flatpak was gaining traction, and suddenly Canonical decides to build their own alternative instead of contributing to Flatpak.

So all in all, Canonical is making some dodgy business partnerships. The add a good bit of bloat in their regular install, and they constantly build their own (inferior) alternatives to all sorts of stuff.

I'm all for having alternatives and choices, but in Canonical's case, they generally don't give you much choice, they just force you to use their alternative. This of course leads to fragmentation, which is unfortunate.

It's bloated with Canonical BS, from their custom extensions (which break touch on Wayland) and Snaps obviously