Gotta be honest, it really grinds my gears that there are so many AFKers in the Celestial Challenge.
I think it would go a long way to be able to report idle play. Don't really see any cons to it either.
I have had the same problem for a while now. Once in a while the entire screen turns black and only UI elements are visible. This mostly happens on the skywatch archipelago meta, but also at tarir meta for example. Got a 2080 TI and a Ryzen 3700x