Input based MM probably isn't possible since BF games have historically supported simultaneous MKB and controller use.
There is, but translating mouse to joystick doesn't result in perfect mapping. It's better than native joystick but still inferior to native mouseConsidering input based crossplay... Is there any software (on PC of course) that lets you "mask" mouse and keybord as a controller? Because that could be a problem.
I'd love to see three levels of crossplay:
1) my console only
2) PS5 + Xbox peeps
3) everybody (that one I don't care about, but to my understanding there are people who want it, so let them have it)
If DICE decides to combine 2 and 3, then I'll stick to 1. I'm not a masochist to play against guys using K+M. I don't like my self-esteem being crushed every match.