A simple plugin to enable the ability to quickly open folders in a desired code editor (any editor that accepts its launch command + the directory should work, I have only tested VSCode and Rider)
Simply download the plugin from the Godot asset store here or directly from the source, create an addons folder in your root Godot directory if you don't already have one in the desired project and drag the GodotOpenInEditor folder into the addons folder. Then go to your Project settings -> Plugins -> Enable GodotOpenInEditor. For the plugin to work you also have to have a valid external editor location in your Editor -> Editor Settings -> Text Editor -> External -> Exec path. This should be the path your the executable or script to launch your desired IDE / text editor.
This is adapted from a C# plugin made by Creta Park which was VSCode specific and be found here I have rewrote the entire thing in GDScript while also removing the checks forcing VSCode only.