I turned my PC into hibernate-mode with Minecraft running. In the next morning I turned it back on again. The window didn't get rendered so I resized the window and I got a understandable multiplayer menu. The main menu was also completely white because of the missing textures. The other sub-menus were also understandable. We don't need to talk about in-game because guess what it also white/blue.

I searched about duplicates but they're some parts of my issue.