Please, let’s hope not. Microsoft is already destroying the Xbox market. Due to Gamepass, consumers no longer buy individual games, so sales have plummeted. As a result, publishers on Xbox feel increasingly compelled to switch to Gamepass. For Microsoft, this is not a sustainable business model in any case, unless there are 200 million subscribers, and they can only come if Gamepass also arrives on other consoles. Rare, what exactly does Sony not want? If it also arrives on PS, it will also destroy loose sales (because your desired game may be on it next month and you will still have a lot to play).
The MS endgame can now only come up with a number of strategies: substantial price increases (whereby you lose the advantage, because you then buy the games separately), lowering the purchased quality, buying large publishers and blocking content and especially on use of content episodes to keep subscribers. And in the meantime, the money is paid to the MS. Not bad, they have many other profitable subsidiaries, but not if they block the market due to the unsustainable strategy by buying all kinds of publishers and creating cross-platform exclusive games.
Incidentally, I often read here that Sony gets a “cookie of its own dough”, but Sony has always had a different strategy. They usually funded a new project and if that partnership went well, they bought the publisher to make even more new IPs (and thus a net contribution to the diversity of the new games). Non-existent IP blocking, which on the net only takes games from the entire market.