Ruslan Tretiakov

It is my understanding that the correct way to do this in Wayland is with subsurfaces: https://wayland-book.com/surfaces-in-depth/subsurfaces.html Since on Linux there are only OpenGL 3.2/2.0 drivers outside of X-specific stuff,...

Have you tried using any shaders? If you want something that looks pixel-perfect you can try sharp-bilinear or aann.

Yes, that is why I suggest using a shader that does not blur things, and looks approximately like it's pixel-perfect. Check out some of these: https://filthypants.blogspot.com/2017/01/shaders-for-sharpest-pixels.html