By this definition, surely as long as Apple didn't market it free from the App Store, it doesn't qualify as a general purpose device? If I could install a web

By this definition, surely as long as Apple didn't market it free from the App Store, it doesn't qualify as a general purpose device? If I could install a web browser and libreoffice on an xbox, would that meet your definition of a general purpose device? And isn't that an artificial, monopolising restriction that I can't?