Just note, 40 vs 40 are effectively "meme" games. You can't play them normally, they are special events only. 40 vs 40 is very much not representative of BAR experience overall ;).
We had Matrix bridge for a few months to some channels related to development. Pretty much no interest (except for 1 person that asked for it), no legitimate activity, yet, there were spammers showing up quite often.
Bridging also didn't map all the discord functionality so it caused some confusion at times.
The challenge with arm64 is that Recoil Engine does deterministic lockstep simulation using actual native floats for performance. Porting all of those operations (which were implemented using the mentioned library) to work on arm64 and produce the exact same bit-perfect results as on x86_64 has been challenging.