Anyways im pretty sure i remember the OpenGL renderer worked fine before i upgraded to debian 13. and also yes vulkan did fix it but at a cost of terrible performance. and OpenGL ES also fixed it but made the game look worse, anyways i hope it will get fixed and i will stick with OpenGL ES for now.

If your a GZDoom/Linux nerd. Can you please tell me how do i fix this sprites flickering bug thing on OpenGL Hardware accelerated renderer. i remember it was fine until i upgraded to Debian 13... Specs: CPU: i5-2300 GPU: Radeon HD 5850, with Mesa 25.0.7-2 #gzdoom #linux

well i predicted it. already knew it will happen

Pretty sure it was this. No idea how did it just got moderated.