Getting Started with Godot
Before jumping into VR, you should get yourself acquainted with the engine and how things work. Godot utilizes a node-based design for its objects, similar to Unity's game objects, except everything is its own node.
Godot also has its own scripting language, GDScript, which is similar to python. Most of the tutorials, guides, and resources you find online will make use of GDScript.
There is also support for C# which I recommend for speed, design-scripting, similarities to Unity, and access to the .NET ecosystem. The C# community within Godot is growing fast as well. Many tutorials here on the wiki utilize C#.
Documentation
https://docs.godotengine.org/en/stable/index.html
Overview of Godot's key concepts
Your first 3D game
https://docs.godotengine.org/en/stable/getting_started/first_3d_game/index.html
Additional Resources