Peer2peer connections are very difficult. Mainly because clients are behind a NAT which allows only connections from inside to outside. So when a client wants to connect to another client one connection comes from outside and is blocked. There is a “bug” called NAT holepunching to still connect but that’s not a trivial task and doesn’t work on all setups. I recently tried out webRTC for a multiplayer game but I still don’t know what to do with people where that connection can’t be established. SteamAPI has a P2P feature as well, and when they can’t establish a p2p connection they just silently route the packets over their servers.
That its producer has gone bancrupt they have absolutely lived the enshittyfication while doing the settings in their custom Android and I am currently on the last supported android version (12) which will probably go unsupported soon-ish and the company I got the phone from has sold so few that the definitely better alternatives (Lineage, etc) don’t have any reports of people who have done it with my device or even a tutorial. And reading into flashing it on an unsupported device is a rabbithole I currently don’t want to spend time with. And if I fuck up I can’t even write the company to fix it for me or smth like that…