You're not taking into account those that play on mobile and on PC. I have friends that use Game Pass Ultimate and only play on their smartphones and tablets, then there's those that only play Game Pass on PC......the Xbox ecosystem userbase is much larger than you're giving it credit for, and is only going to keep growing.

And actually Square Enix straight hasn't payed the developer without an explanation, leading to speculation that Square just pocketed the Game Pass deal money and the developers only get profit from straight sales, which some could blame Game Pass for that, but it was released on PC, Stadia, PS4/PS5 as well. With that much of a userbase, it shouldn't have had much of an issue making a profit on a multiplat. 

Look at MLB: The Show 21 which was Game Pass day 1. Profits escalated dramatically for Sony, which I'll attach a story for. I can't seem to find up-to-date numbers, but as of July 28th, 4 million copies were sold. 2 million copies were on PS4/PS5 and the other 2 million copies were on Xbone and Series X/S. Not bad for a console lineup that is dramatically lower in install base. MLB The Show 21 Xbox Release Has Been Huge for Sony Profits (gamerant.com)

I think you are mixing sales with playerbase on the MLB, but will check the link you posted.

EDIT: looked at the source, and it is a tremendous clickbait, basically they are trying to put 4 different bullets together and conclude that GP may have somewhat contributed to sales (even though Sony talks about sales add-on, and that they released the title on more platforms, nowhere mentioning sales improving due to GP) but for the title they go leaps above to conclude that MLB have been huge for Sony profits. It would be impossible to be more reaching even if they tried.

Yeah, I actually misread that lol specifically the words were, "Of its 4 million players, MLB The Show 21 sold two million copies on PS5 and PS4, with the other half coming on Xbox Series X/S and Xbox One" I missed the "4 million PLAYERS" part lol but the game on Xbox definitely did bring Sony more profit of the game. 

Yes it is likely that Xbox brought profit, but we have no idea how much, much less as the article claimed that the Xbox version made huge profits for Sony.

I dunno, for me the Xbox userbase is pretty much around 50 million. But the PS userbase is twice as many. And didn't say otherwise.

Never said it didn't, since basically even 1 Xbox version of the game is profitable for Sony.

it's an interesting game, that I'll definitely take a look at once it comes to gamepass (hopefully it'll play well on Series S) - I'll likely pick up a PS5 before that happens, but I'm not intrigued enough to pay for a game I know I'll get access to within a reasonable timeframe

Great reviews but I'm leaning towards a sale despite not having a PS5 to play it lol.

Ill check it out once the price drops. Too expensive.

Looks like my kind of game, will buy when I can find a ps5. Same with Life is Strange: True colors and Ghost of Tushima. I already have Returnal, Ratchet&Clank and Miles Morales physical editions and a couple of ps+ games for ps5. My future backlog is growing rapidly. Hurry up and deliver some of those ps5s to Canada!

LOL you obviously have no clue what you are talking about.  Xbox game sales have always been stellar the 360 still hold the record for highest attachment ratio with 11.75 physical games sold per console and the original X Box is number three on that list with 11.01 physical games sold per console.  Since most people buy their games digital now that ratio dropped to 5.34 on the X1 but that is still higher then the PS4 which is at 5.12.  X Box game sales have and will always be blockbuster and on average people that have X Box consoles buy more games then Sony and Nintendo console owners.