Posted this on the other thread but will also post here.
This is a list of all the exclusives shown. The bold are new announcements. Not including the DLC and expansion announcements.
Halo Infinite
Ori Will of the Wisps
Crackdown 3
Forza Horizon 4
Session
Black Desert Online
Tunic
Battletoads
Gears of War 5.
Forza and Black Desert launch this year. So MS might have 8 exclusives for next year which is pretty good imo.