Naming Convention Flaw: Variable Names Clashing with Public Instance Methods/Vars in GDScript

**Your Godot version:**
4.2.1

**Issue description:**
The recommended naming conventions for GDScript have a significant flaw where variable names and public instance methods/variables can have the same casing. This often leads to clashes where variable names unintentionally match existing public instance methods or variables.

**URL to the documentation page (if already existing):**
https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/gdscript_styleguide.html#gdscript-style-guide