GDQuest is a French-origin game-development teaching brand founded by Nathan Lovato, focused almost entirely on the Godot open-source game engine. GDQuest is the largest dedicated Godot education brand and a long-running contributor to the engine's documentation and community.
The CourseFlix listing carries two GDQuest courses on Godot game development. Material is paid and aimed at game developers building 2D or 3D games with Godot rather than Unity or Unreal.