I switched my AI workstation to Ubuntu 20 last week, and the experience was fast and great. I can now run docker containers with cuda, use PyCharm to coordinate everything and have code completion as if the code was local, even if it's executing on a docker worker node in our data center.

200% scaling on my 4K screen looks great, wifi, network, sleep, gpu all worked out of the box. And the IDE behaves exactly like on OS X.

The only thing I disliked was the default Ubuntu color scheme, but that was easy enough to change.