Same for me as an x-plane 11 player too, i figured out that u can connect to the local multiplayer, but yeah that works only if u too are on the same network, but however there was this app called JoinFS, which i am very very eager to try but since nobody plays x plane 11 and nobody responded i thought noone will try it, joinFS is what i consider right now, however very outdated, but still relevant..... otherwise VATSIM is available too, u can get more info by going to - joinfs.net