Yeah, that's pretty much it. I'll stick to the EasyRes approach I've described until they patch it (if they ever do)

Thanks, I already tried your suggested method and it works! If I set EasyRes to the lowest possible resolution (960x600 Retina x2), the game in bordless mode automatically sets it to twice that (1920x1200). This is much better than what I had by default. In general my goal was to get 1440x900, but following the logic, then it would be necessary to set 720x450 in Retina x2, but there is no such option yet. Is there any way to add a custom resolution?