https://bugs.winehq.org/show_bug.cgi?id=44985
--- Comment #31 from Olivier F. R. Dierick o.dierick@piezo-forte.be --- (In reply to Olivier F. R. Dierick from comment #30)
Injecting " --single-process --use-gl=desktop" gave the best result so far: There are no qtwebengineprocess.exe errors until the application is closed. Then there are 3 error dialog that can be dismissed.
I was wrong. It was pure random luck. It doesn't perform better than --single-process with --disable-gpu.