Hi again, sorry for the delayed reply.
Its much easier to test than try to explain, no one with an account in office? lol.
It does run true fullscreen otherwise SLI wouldnt work. Its my biggest reasoning for using displayfusion. I run SLI because i run surround. Hence to reap the performance benefits of SLI i need to run fullscreen but at the same time I play mainly mmo's so having an accessory display handy is paramount.
In most games displayfusion lets me do both. In ffxiv its becoming problematic.
If i switch to borderless, I lose SLI but it doesnt redraw obviously.
The game is unique in that even in full screen it lets the mouse leave the game window. The problem is when you actually click on something else on the other monitor and then click back it redraws. If you simply leave to the other monitor and come back without giving anything else focus its fine.
It does have an option in game called "prevent mouse from leaving playing area" or something to that affect. If you check it then it behaves like any other fullscreen game would. I attempted to use this and enable displayfusion to allow me to leave the game screen which worked as expected. Of course when I gave the game back focus, it redrew again which was not expected/hoped for lol.
Nothing else I can really do so if theres nothing you guys can do, i guess its up to nvidia/ms/squareenix to solve/address and given the way they treat users of sli and especially surround, not holding my breath.
Thank you for your time regardless