There’s a difference between being lonely and being alone. If you’re content being alone then that’s not really loneliness, similarly having people around you constantly doesn’t mean you can’t feel a lack of connection and loneliness as well.
In other words, I agree with you, but this article seems to miss this distinction…
While true for some games that require their online services. There’s nothing keeping you from downloading a game and backing up the install files on your own media to play later… A lot of games will run without steam open if you just run the executable…