I'm not sure I understand. The last Unity project I exported (from a few years ago) created a single executable and a parallel data folder containing a bunch of files and folders.
So, at the top level, that's 2 things (an EXE and a folder) which is nearly the same as Godot's 2 things (2 files).
I'm not sure why you consider that unprofessional, or really, what you're concerned about.