A couple indie devs and a communications manager from remedy.
BG3 is the only big title and its simply caused a delay cause MS want the feature on both.
Plenty of bigger games running on the console just fine. Maybe MS should send some of it's devs to show them how to work it.
I believe MS did have to send some of their own devs to help Larian optimize better and quicker. And no not just indie devs , there were 4A, Id4 , Infinity Ward, Remedy to name a couple big AAA ones. Though MS themselves are also delaying some of their own legacy features because they could not implement in time for launch.
Now that we are heading into just next gen only for games, will be interesting to see where things go.