The idea of "orbital data centers" was conjured up merely to justify Musk's merging of xAI and SpaceX. I thought that was obvious to everyone but apparently there are still plenty of little-minded people that see Musk as some sort of God and suck up every lie he shoots from the hip.
Musk is merging all of his failed enterprises (Tesla, xAI, Boring Company, Twitter) into the one that has been relatively succesful, SpaceX. Mostly because of Starlink, the idea for which he himself didn't even come up with and was initially seen as an afterthought to get some revenue.