For me, it’s Shared GPU memory.
Effort free gaming on Windows
I’ll acknowledge that gaming is much better than when I entered the field 20 years ago,
but it was so nice being able to just install a game and have it function instead of install a game and play the 50/50 gamble of whether or not it’s going to have some bug that forces me to go online and search the issue.
Proton DB has been a lifesaver for most issues that have occurred, but there are still so many games that have obscure problems that while not all of them prevent you from playing at all, a good portion of them have issues with them that dampen the gaming experience.
And as a bonus one, the lack of a decent Android emulator. I have tried so many different emulators for Android, and all of them work notoriously worse than BlueStacks did on Windows and a lot of times take up double the space it did. As a person who plays a lot of mobile games that require constant looking at, it was so much easier to just have it running in BlueStacks on the third monitor and then just look at it when needed
I miss effort free gaming on windows too. It looks like they laid off everyone in that department and put everything in to AI and subscription begging which has made it a miserable experience lately. I had to click deceptively placed no buttons like 30 times just to get to the desktop so I could update the damned mobo rgb controller to detect and turn off the lights