Text:
I consent to Plex to: (i) sell certain personal information (hashed emails, advertising identifiers) to third-parties for advertising and marketing purposes; and (ii) store and/or access certain personal information (advertising identifiers, IP address, content being watched) on my device(s) and share that information with Plex’s advertising partners. This data is used to deliver personalised ads and content, ad and content measurement, audience insights and product development. Your consent applies to all devices on which you have Plex installed. You can withdraw your consent at any time in Account Settings or using this page.
Soure: https://www.plex.tv/vendors/ (Might have to clear cache)
Can also read about the changes here: https://www.plex.tv/about/privacy-legal/
Mate, I'm just posting what is on Plex's own website. Their words, not mine. You might be able to opt out of this if you're lucky, or maybe its off by default - idk. But let's face it Plex is on a heavy enshittification roll, rolling faster than the contestants running for Cooper's Hill Cheese-Rolling contest. Ain't nothing stopping them from enabling this for all users much like what Roku did last year.
You can conscent to whatever you like. I'm not touch Plex with a stick.