That's only if you ignore dreams, gran turismo, iron man vr, MLB The Show, demons souls remake, Spider-Man miles morales, astro playroom, sackboy's big adventure all of which released since 2020.
We also know of Horizon Call of The Mountain as well which is first person.
Also Blood and Truth, Erica, Concrete Genie, and Medievil remake happened only three years ago and some of them even after gears 5 came out.
Anyway this whole cinematic third person crap is nonsense, days gone plays nothing like horizon, tlou 2 plays nothing like god of war and because of that those games will attract different audiences and the camera perspective in those games arent even the same, God of War's camera is a lot more closer to Kratos most of the game then the camera is to Aloy in Horizon. Trying to lump all these third party games together as if their all the same is a very disingenuous argument.
also what genre and perspective variety does microsoft have?
gears, halo, and forza?