3 graphic cards doesnt full screen game

This happens to me as well. I always have to disable all but my main GPU in order to run the game properly at full screen and with a good framerate. This doesn't happen to me on other games like Halo MCC, Halo Infinite, Watch Dogs Legion, even other BF games like Battlefield V. Battlefield 2042 for some reason seems unable to detect the proper GPU to use, while other games do this just fine. Some games even let you choose which GPU to use in the display settings. BF 2042 should either detect properly, or let you choose in game.