For some reason, even having all the extensions installed and configured correctly (C#, Mono Debug and Godot C#), when trying to complete anything related to Godot nothing appears, it doesn't recognizes Godot's types and neither its methods even though it has using Godot; at the top of the file, the Debugger also doesn't work properly and it's only possible to see errors in Godot. I tried to reinstall, create new project and to no avail.
I saw videos on the internet and they all had autocomplete for godot namespaces, if you type GD. all available methods appear however for me nothing appears and it is not recognized
(I'm using the latest stable version 3.5.1, according to Godot extension support is valid for any version above 3.2.2)