My OW1 stuff (what little there was) is intact on my PC OW2. I am still awaiting the account merge queue to see if it’s on Playstation PS5 now too. But I really had nearly nothing from OW1. Mostly I have the sacred @Wallapuctus Devil Mercy Waifu along with a Black Kitty DVA waifu. Thus my rage meter is lower and apparently I had/have a thing for Halloween waifu as that’s seemingly all I cared about in my mere 4 hours of Overwatch in 2016.
As to servers, on PC, if I change region to Asia I can play and everything is intact there too (including Battlepass). The queue is much lower and the servers are seemingly stable. Lag seems fine and many seem to be doing the same thing as player names and chat are all English. I’m not sure if this is an option for console OW2.