How is it any different to viewing a shared Plex library to the end user?

They have a reverse proxy setup, so their family or friends would simply enter that url into a jellyfin client and sign in.

So yeah, I think an average tech illiterate person can do that

Yes he’s rich and out of touch, but what’s the dumb opinion here?

That the steam machine is a good computer? That the experience of using steamOS on a steam machine is seamless? The gaming performance isn’t top tier?