I am playing on a laptop with AMD dedicated GPU, steam client and linux distro. I found that running the game with the legacy renderer is worse than the modern renderer. The game assets start flickering, and the game freezes suddenly in less than 5 minutes, giving no response, neither the typical crash report window. Turning off GLSL, FBO or VBO doesn't help at all. Besides that, FPS is normal, running the game pretty fast.
As legacy renderer is unplayable, I am currently playing under the modern renderer. Even with all graphic tweaks on low, this forces me to play in 10 FPS or less, which is starting to drag me down.
Is there hope for me? I love this game. I just want to play smoothly, not minding the graphics quality.