At least on the AMDGPU side, I've seen mentions on Phoronix of various game (detected based on binary name usually) specific compatibility hacks that force on/o

At least on the AMDGPU side, I've seen mentions on Phoronix of various game (detected based on binary name usually) specific compatibility hacks that force on/off various behaviors and other minor tweaks. Given the size of the "driver" files on Windows these days, my GUESS is that they might ship literal patches that replace portions of the GPU code in some (popular) games. There's also the issue of games developed with explicit support for the architecture of a given GPU (usually Nvidia), where algorithmic approaches bias towards the strengths of one type of product.