calibre portable is only portable if you run it with calibre-portable.exe in its folder and from nowhere else.
And dont put it in google drive.
https://manual.calibre-ebook.com/faq...rked-drive-nas
You wan to backup all your calibre books and settings and plugins, you simply need to backup a couple of folders. Setup a proper backup solution to do that rather than trying to hack it by putting calibre into a networked drive.