AAA companies might pump out a lot of FPS- though it's arguable that they also grind out all sorts of other reliable and less-than-groundbreaking genres, from flavor of the decade trends (MMORPGs/MOBAs/live service battle royales/extraction shooters) to annual sports titles to Assassin's Creed sequels. The Call of Duty machine aside, I'm not sure if FPS is as much of a cash cow as it used to be.

And if you look at this best-selling video games list, there's only a single FPS in the top ten (PUBG, which is technically also third-person):

https://en.wikipedia.org/wiki/List_of_best-selling_video_gam...