Also the answer to the "Don't know how you found it" is just that I looked at the folders and saw that the audio one was the only one at 59MB in a project that is 67 MB in dimension
I can also give you one more recommendation about further optimization of godot. Compiling it from source with disabling unnecessary to your project features although it is a bit not flexible tool to cut unneeded thing or even use build_profiles which are a raw/experimental piece of ***** but work greatly