Bruh any major publisher would be a nightmare for many.
I wouldn't mind because of my Gamepass sub but I know it wouldn't be great for a lot of single console owners.
EA - would probably have to release the sports games multiplat (maybe they'd actually make FIFA Switch not suck ass) but Respawn, BioWare and those sports title on Gamepass Day 1 would be industry altering.
Sega - Sonic, Persona, Shenmue, Yakuza, Valkyrie Chronicles.
Ubi - Assassins Creed, Watchdogs, Prince of Persia, Tom Clancy license, Far Cry
Capcom - Street Fighter, Resident Evil, Devil May Cry, Monster Hunter, Mega Man
Any of those would be insane and really shake up the industry and writing out the franchises out right now really made me realize how nuts it would be.
I can't see it happening, but again I never saw Zenimax happening.