Vanilla Capacitor

I have been looking at the default blank Capacitor camera demo and notice that the web browser App PWA has a compiled capacitor.js file. Whereas the camera plugin is controlled by the js folder capacitor-welcome.js file.

Can a PWA be made without the compiled capacitor.js file? And then could that Vanilla Capacitor page also be converted into a working Android App?

Is the compiled file an absolute necessity?