Resolution-Settings set in the launcher aren't transferred to the game. I set 1920x1080-Fullscreen in the launcher and the game starts in 5760x1080-Fullscreen (which is my desktop-resolution).
I guess this goes hand in hand why Unity decided to get rid of the splash screen in 2019.4 version of unity. They already said that this was broken. I never had problem like this but maybe it helps if you start the game in windowed mode ?
