This is a well documented bug that has existed for years.
Post history:
2020 Feb: https://forums.plex.tv/t/ios-media-transcoding-on-cellular/543159
2020 July: https://forums.plex.tv/t/ios-media-transcoding-on-cellular-data-only-up-to-2mbps/618528
2022 April: https://forums.plex.tv/t/bug-report-transcoding-capped-at-2mbps-480p-on-ios-app/789164
2022 July: https://forums.plex.tv/t/ios-plex-app-wont-give-transcode-options-above-480p/801671
2023 Jan: https://forums.plex.tv/t/cellular-data-is-limited-even-if-its-not-selected-know-bug-in-ios/826296
What is the latest status on it and is this officially “wont fix”?


