This is how FULLSCREEN MODE functions. It takes up the entire screen and you can't easily transition between the application and other apps or monitors. Tabbing in an nd out will cause a black screen pause as the screen relinquishes your software and switches over to what ever else you're trying to get to.
I hate full screen mode. I'm currently troubleshooting why the game is forcing me into it. I always keep it on borderless windowed, and then one day i log in and its set to fullscreen, and its now every single time i log in i have to switch i tback over to borderless windowed. Which is getting obnoxious. Of course Square support is kind of useless. Just patronizingly telling me to make sure i've set it to borderless NOT fullscreen... which i had already informed them I had done and know how to do this. The only other avenue they gave me is to completely reinstall the game w hich makes me feel ikcy... that always causes problems. I even tried setting it to Windowed mode. It doesnt matter. The next time i log in it'll be back on Fullscreen. Sadly this forum post wasn't helpful to me but it was the first to pop up in my initial search and thought I might as well chime in on the topic.

Quote Originally Posted by Mallador View Post
Hopefully this is the right place to post this... So, I've been playing for about a month now and every once in a while I'll come up with a problem that involves switching between my home-screen and the game--three, four times so far I believe it's happened.

The problem is that, when I switch screens, whether by pressing windows or alt tabbing out of the game, every once in a while my entire screen turns black and I quite literally can't do anything to solve it (so far), so I have to just shut off the breaker to my computer and restart. I can hear sounds fine and I can hear my clicks being active still, but I can't see anything.

It's nothing huge, but I was just curious if anyone knew anything more detailed about it--I saw a reddit post that was from a couple years ago who had the same problem but no one was able to answer it. Thanks.