Local Wifi Multiplayer without using Google Play?

Ok I figured it out. It indeed works, even as Oculus Quest as Host. I was able to connect two oculus quests without a PC. I think the problem was using 4.23. There seem to be a **bug **in this version: Unreal Engine Issues and Bug Tracker (UE-82549)
I ran the same project in 4.22 and was able to host and join with oculus quest. Also Check your WIFI network. The first network I used was our company network in which broadcasting etc. was not allowed. I then switched to a small local setup without restrictions and was able to find and join the session.