u/bitmapman_dev
GDScript will give you the most painless and straightforward Godot experience. I'd highly recommend using it as much as you can get away with.
If you really need performance for something that the engine doesn't provide you (all of which is implemented in C++ under the hood), then I'd recommend using C++ via GDExtension if you can, otherwise C#.
It depends on where you're processing the input, but all Nodes come with the set_processing_input() method which disables the _input() method if you're processing input in there. If you're moreso processing input in _process() or _physics_procress() then yeah I think what you're doing now is probably the simplest way to handle it. Just have a bool somewhere you check before doing stuff related to input.
Don't take it personally, this person is a well-known troll and all-around bad person who leaves negative reviews on games for absurd reasons and with minimal playtime. Essentially he just hates anything that's not modern AAA 3D graphics. You can see from what he wrote that he's not very bright and really has no clue what he's even talking about. A comically pathetic person.
I'd bet Steam is aware of him and might be willing to work with you on removing his ridiculous troll review from your game.
