AFAIK the same has worked in Halo: MCC for as long as that's been available on PC. I've certainly been cross-playing my replay of the campaigns, rotating between PC, Xbox One, and XSX based on whatever I'm in front of at the time.
It is nice that Microsoft finally acknowledged a few years ago that their consoles are Windows devices that have USB ports and stopped disabling keyboard/mouse support. The idea that console users were banned from better FPS input for years was just nonsensical.
Now if only we could get them to mandate keyboard/mouse support instead of making it optional. There's no good reason to force console players to not be able to aim properly.
It is nice that Microsoft finally acknowledged a few years ago that their consoles are Windows devices that have USB ports and stopped disabling keyboard/mouse support. The idea that console users were banned from better FPS input for years was just nonsensical.
Now if only we could get them to mandate keyboard/mouse support instead of making it optional. There's no good reason to force console players to not be able to aim properly.