The current pre-release of the client ("pioneer" in the version) is only compatible to itself. So you can only play with other testers. Please be aware!
I'm also having this issue since upgrading to windows 11.
game_24419832.log
Also the game regularly freezes up during coop missions/campaigns and I'm unable to close or minimize the game window to use task manager, forcing me to restart the computer or else be stuck on a frozen FAF screen forever.
game_24419924.log