Windows 10 pro basically does this Border-less with my ffxi game all except for the title bar at the top of the screen that lingers there permanently while I'm playing the ffxi game!
Just wish there was an option under the ffxi's own config tool to hide the Final Fantasy XI title bar at the top of the screen allowing more of the game graphics screen to be shown behind it and pops back up only after it is highlighted with your computers arrow allowing you to click on minimize button if needed to be honest!