Dying Light 2 does not start when ray tracing options are enabled in the game options. Upon launching, the game tries to go into fullscreen mode and immediately crashes to desktop. This reproduces with Proton-GE 9-20 and Nvidia drivers in the 565.x branch, including the latest 565.77. This does not reproduce with the 550.x driver series on the same system, with everything else being the same.
You can see there are other reports similar to this towards the end of the comments there, starting from this comment. The problem was first reported with 560.x driver series and doesn’t reproduce with 550.x. I don’t know about the 555.x series.