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/
I can tell you right now that something like a username and password is exceptionally difficult for most users. Many just have one password for every single application and if they need to use a different email or password, they will be stuck.
The vast overwhelming majority of users do not have password managers, do not know they exist, and will give up at the first sign of complexity. You’re too far into the weeds if you don’t conceptualize this.