While I managed to found similiar threads, it seems that none of those had any solutions.
Basically, I game on my Win10 laptop with an integrated Intel card and discrete Nvidia 940MX card. I usually play at 720P with maxed out antialiasing, so I can get decent framerate without too much jaggies.
Today I managed to leave the game working while going afk for quite a while, just to see my faded screen when I came back. That's pefectly fine on it's own, every time my screen faded the game simply minimized itself.
This time, though, instead of minimizing itself it went into windowed