Hello, I just had a problem with scaling my game window. It would zoom way in to the top left corner of the game, when I alt+tab or switch programs, or scenes in obs. So I messed around with different capture modes, and found out that if I use Window Capture instead of Game Capture or anything else, for my game. It would fix the scaling zoomed in issue. It works even on maxed out windowed game. Btw if you have any problems with scaling your game back into the base canvas resolution, you might want to try right click>Transform>Stretch to screen. Though you might not get the same result as me, because I am outputting 960p recording on a 1440p base canvas, with the game also on 1440p windowed. Anyways, I do hope this also helped you out.
Here is an image:
Here is an image: