It would be similar to how you do it in Unity. Godot has similar networking to UNET that existed back then. The docs are pretty easy to understand.

Users (and I think Discord too) call the communities servers, and channels are the individual topics/threads in a community. It might not make sense from a hosting perspective but people do call it that

Yes I think it’s just the opposite of the study of weather being meteor-ology. Or rather, weather man = meteorologist = meteor scientist I guess, feeling dumb