https://bugs.winehq.org/show_bug.cgi?id=43854
--- Comment #4 from azarus@posteo.net --- (In reply to Fabian Maurer from comment #3)
Do you know how to use apitrace? If so, could you upload an opengl trace somewhere to see if it plays back fine on another system?
As far as I know -- Witcher 3 is a D3D11 game, and apitrace doesn't support that api, but I might be wrong.