I use Youtube, Twitch, VLC, Neverthink and Spotify.
None of these show anything meaningful in their channels. The youtube/subscriptions channel show three clips I watched two weeks ago. Twitch I suppose shows stuff they want to push, but nothing that I am subscribed to. Kind of like I am getting some kind of "defaults", it doesn't change day to day.
Play Next only shows that blue dog icon.
So, do they work for anyone else?
(I have a hardware firewall that may be interfering, but before I start tinkering with that I want to know if this feature actually works yet.)
Yes, they update, but they are far from perfect. I'm more likely to see a new video from a subscribed channel in my Recommended channel than in my Subscribed channel.