It is not an officially endorsed OS. Like for instance WSL is.
They point to reddit themself already making a point stating AU is not the place.
So I would say: no, we do not.
There is also stackoverflow to send them to.
I'd like to comment on the initial post, but I don't have the required reputation yet, so here I go.
It is stated above:
CLOSE REVIEWERS: Do not close new 20.04 questions as "offtopic", effective as of the time of this post
however I posted my Fossa related question on the following URL, and it was closed:
Problem with open-mpi in Ubuntu 20.04