Imo none of this is even remotely news to me, one of LTTs most popular videos is that "I've never been this angry at someone and fired them before" where he had taken some new guy to go to his house and install a bunch of writing and stuff, totally outside any and all expectations of his job, and he'd done a not so stellar job, and it's like, what did you expect? He's not an electrician, he was like some sort of video editor or something? And you're the fucking CEO? How do you think the guy felt? Oh right, you don't give a single fuck. I don't know man, that's giving of some small business owner psychopath vibes.
Yeah, and AKADEVIL released a version that locks to the primary screen when you click a button. Last time I checked DMT offered static "lock to screen x", with either hotkeys and/or border resistance, both of which is worse ux. I have used both in the past but AKADEVILs tool was too simple and DMT is way overcomplicated for my needs. Hence I wrote this tool.
Most games do have exclusive fullscreen which doesn't suffer from this problem most of the time, but depending on how the game handles alt-tabbing and such, it might not be an ideal solution