I just got a 240hz monitor. A Viewsonic XG270. I have an issue where when I alt-tab in Destiny 2 my screen will go black for a few seconds then the game will show back up. The only way to successfully alt-tab from in game is to hold down alt, and eventually after a few seconds my other windows/desktop will appear. I've seen other posts with similar black screen issues around the internet, and people saying to play in windowed full screen as this seems to be an issue with full screen games. On my other monitor, the one I was using before, I am able to alt-tab with no problem, even in full screen. This seems to not be isolated to just Destiny as I have this issue in other games as well.