Well I guess in theory that would be true, however I suspect it's not as hi tech as that..
I can't see Roger and Brian uploading material to a shared drive once done, in particular I can't see them doing that with outtakes. I suspect that someone will make copies on multiple formates of anything worth keeping, and that it then ends up being stored somewhere offsite as it were.
I am sure many emails and files will go back and forth between band members during the creative process, but I am interested to hear how and in what form the storage takes once done, other than person copies kept by the band.
"It is better to sit in silence and have people think you're a fool, then to open your mouth and remove all doubt"