Someone who isn’t into strategy games will play shallow strategy games like fire emblem because its anime and allows you to date anime girls with big boobs.
This is not unexpected, Sony games are movie games and they prioritize cinematics over anything else and graphics for the most part have peaked without going full path tracing. Shame they have no good writers at any of their studios anymore.
PC gamers all have different machines, which must make optimization a nightmare.
DirectX, Vulkan and OpenGL do all of the talking to the hardware, those have been around for a very long time. The imaginary issue of ‘you have to target millions of configurations’ is simply not true.
Proton used to disable compositing back in version 5 or 6, then one (minor) update messed it up. iirc it was reported to the issue tracker but still hasn’t been fixed. proton-ge still keeps the compositor disabled.