Embedded Social Media Features in Players

[tom80H]

What you describe can partly already be done – for the rest you can find existing feature suggestions. Please stick to the rules for the feature suggestion forum and search before posting duplicate requests in order to avoid distracting votes from each other.

Adding/removing users to create individual friends lists

You can manage individual friends with the given Plex solution.
There’s a feature suggestion to allow managing user groups

User Groups

The ability to group users to grant permissions would be amazing. Currently, if I want to restrict access to a certain plex library, I have to individually remove it from each user. The same goes for adding access to a plex library. Additionally, having groups where one can restrict the rating of the content they watch would also be very beneficial. Granted, most plex users probably don’t have 10+ users who have access to their library, but it would still be nice even with a small number.

Seeing whether a friend has viewed something

You can access the watch history of your users from the server dashboard or from an individual item in your library.
https://support.plex.tv/articles/200871837-status-and-dashboard/

Leaving and seeing basic reviews (stars) for shows/movies

Users can rate movies you share with them… however you’re right they’re solely doing this for themselves. There’s no “The following users also liked that movie” or “Users who liked this movie also liked …”.
There’s a feature suggestion to allow curator notes (= you commenting / providing a review to your server content)

Curator Notes/Reviews

As the owner of the content, I want to write a note to the eventual borrowers from my library. Even a tweet-style short message would suffice. Something like, “This is my all-time favorite film.” or “Hit me up for a chat after you watch this so we can discuss.” Here’s a quick sample of how I envision it: [curator-note-example] My music library has a meta field called “review” that I can use – seen here: [05%20AM] Unfortunately it’s not obvious that it’s a message from me to my users. Also,…

And last not least a suggestion on how to see how different friends rated your movies (which is probably closest to what you had described)

Recommended and User Ratings Overhaul (Mocks included)

One of the most underutilized feature of Plex is Recommended feature. Many have already voiced the want for the feature to allow recommending media within our own libraries. This idea builds upon that by combining with user ratings, another underutilized feature to have automatic recommendation. Let’s have a look at a mock up first. As you can see there is a new row of media shown on home screen below On Deck called Recommended. Notice that Recommended has moved under Libraries section in th…

Using friend lists for viewing parties

=Watch Together (based on the friends you have shared your server with)
https://support.plex.tv/articles/watch-together/

Sending/receiving recommendations to friends

There’s another feature suggestion focusing on sharing suggestions with users and among users

Recommend server content (not just queued)

I would like to reccomend my content on my server to friends. Not just videos I have put in my queue. Also share to facebook or other social networks what I’m watching. Anyone else want this feature(s)

I’m closing this request (as it’s a duplicate) – you’re more than welcome to give your feedback to those other threads and vote for them. There’s a number of others… from sharing to a social media account, sending messages among users… even one that’s calling for “landmine items” from somebody who felt if his friends want to watch a specific movie they’re not worthy of sharing their content, causing the friend to be banned from the server (well… I suppose that last one goes to the other extreme of “social”).