At best it's going to make a lot of developer jobs insufferable because they're going to be cleaning up the large pile of horseshit that an AI produced to "reduce costs".
Though besides the "AI coding independently" area which I believe is still science fiction for the time being, I do think Software Engineer jobs will be reduced and wages lowered due to the massive productivity increase each developer has from using AI to deal with the repetitive stuff or faster troubleshooting and learning, that previously had to be done by looking at many Stackoverflow posts or parsing through other messy sites to find how something is done.
I would say that while it is a monopoly, it monopolizes something which doesn't make much sense to be decentralized. Having multiple launchers for games, and making some games exclusive to some launchers but not others etc. is annoying as hell and is only a good thing for the executives and investors behind these companies at the expense of everyone consuming the product.
Having one corporation be in control of the distribution platform for most if not all games is also very troubling, but until it's possible to have a democratically owned open source distribution platform, there's no other good way.