Heroic Labs | Making an online multiplayer game with Godot and Nakama
Godot 4 simple networking template available : r/godot
Quick introduction in Godot 4 Multiplayer | by Sw33tBit | Medium
A Multiplayer Tutorial Series for Dedicated Servers and Large Scale Multiplayer Games. 100% GDScript. Four Episodes released already, more info and links in the post : r/godot