Read the email again. The key word in their marketing slop is “alternatively”. You have a Plex Pass and are the server admin. Your users need to do nothing.

Unfortunately, that does mean I have to respond to messages from all my users asking what that email means and convince them they can just ignore it.

A second “nice” part of this change is that iOS users no longer have to buy the Plex app on the App Store to stream longer than a minute. The app is only like 5 bucks one time, but it was a barrier when trying to convince stubborn people to just fucking TRY my Plex server.