A few things, and I am likely forgetting others:
Backwards compatibility: It was a mess on the PS3 with different launch models having different levels of compatibility. They later removed this functionality completely on the PS3. The PS4 had no backwards compatibility for PS3 instead you had to purchase (or subscribe) to play games in the cloud, games you may already own.
Compared to Xbox which the Xbox One did not launch with backwards compatibility once the leadership was changed they started a project to bring backwards compatibility to Xbox 360 and OG Xbox games (admittedly on a limited basis but you could stick in your original disks and it worked, no extra charge). This carried over to the Series consoles.
Related to this Sony has re-released their games many times and been able to thanks to the lack of proper backwards compatibility.
The price of the PS3.
The cell processor of the PS3, Sony thinking that devs would bend over backwards to support their architecture.
Paying developers either for exclusive content or for exclusive third party games. The content is the one that really drives me insane because if you buy a game on another platform you are getting less content for the same money.
Blocking cross play with other consoles for a long time and then only allowing it in certain situations (I don't actually know if this has improved yet or not).
There are likely a few others that I can't remember right now but I am about to hop into a meeting. But has Microsoft done some of these things? yes, but before Phil Spensor came in and changed Xbox.