I don't think Proton is _based_ on Vulkan. From a quick search: https://www.reddit.com/r/linuxquestions/comments/sgn36x/how_to_play_proton_games_on_a_computer_w

I don't think Proton is _based_ on Vulkan. From a quick search: https://www.reddit.com/r/linuxquestions/comments/sgn36x/how_to_play_proton_games_on_a_computer_with_no/ https://www.reddit.com/r/linuxquestions/comments/sgn36x/how_...