Sony don't have a monopoly on talent when it comes to games. Nobody does. Remember that talent has nothing to do with the console you are on or the performance of a console. If that was the case, Nintendo wouldn't exist, and certainly wouldn't have a far higher output of good first party titles than both consoles put together.
Also, while yes Sony do have an exceptionally high quality barrier, their games are still hit and miss with some. Hence why they get the third person story game meme. I don't see it myself, not with games like Astrobot. But let's not forget that MS have essentially got a lot of the main people on board for The Initiative from these companies that are so widely acclaimed. That's the one I'm most excited to see what they are doing with.
I get it though, MS's first party output this gen wasn't just lacking, it was awful. Recore could have been amazing but didn't have the budget or skill. Crackdown was actually a good game but was nothing that couldn't be done on 360 (even worse after the cloud shit). Gears 4 was lacklustre but gears 5 was a great effort. And Forza Motorsport isn't my thing so I can't say, but forza horizon? 3 and 4 are easily two of the best games of the entire generation, but pointless if you don't like racing games.
The biggest kick in the balls for MS is that they are quite honestly sitting on a GOLD MINE. Past ips they own are insane we haven't got a new ones. Battletoads looks shit, banjo has been left to rot, perfect dark may come back (rumour), as may Fable, Kameo? Crimson Skies? Conker? Jade Empire? Blinx, Brute Force, Grabbed by the fuckin! Ghoulies even?!
They sit on all these ips are are doing bugger all with them... that much baffles my mind completely. Like how many years have people been crying out for a Banjo!!!