Many of the games are made to be run on windows, windows is still a effecient os, it’s just a lot of bloat, which can be disabled.
A) as someone else pointed out, “bloat” and “efficient” are exclusive to one another. Now, you can argue that windows is efficient in some areas and bloated in others, but “bloat” and “efficiency” are mutually exclusive when applied generally.
B) yes, most, if not all of it, can be disabled through registry edits and 3rd party hacks. However, in my experience, the more you try to debloat windows, the more unstable it gets. Then, it will all come back eventually via updates, which means you get to disable it all again. Finally, again in my experience, the more you try to debloat windows, the less stable it gets, and this carries over even when the OS reinstalls/reenables bloat you tried to get rid of. Seriously, my experience is that even after windows updates rebloat everything, the OS remains unstable, and becomes even more unstable after you debloat again. Granted this was with windows 10, but I imagine the same is more or less true for windows 11.
Also a lot of optimizations in nt has been done for gaming, features which are missing in the linux kernel, but there are RFCs to add nt like synchronization primitives, in the linux kernel.
C) and yet, iirc, recent Linux vs Windows 11 benchmarks show Windows games running on Linux via Proton/Proton-GE anywhere from slightly slower to slightly faster than Windows, despite requiring translation layers to run; while the Linux-native games typically run faster than their Windows counterparts.
Windows is just that bloated.
Damn, you know shit’s getting serious when they add green to a temperature color gradient.