So I got mixed results. With remote access disabled and just using subdomain for plex, it worked on the Windows desktop app, and my iPhone too through the browser, but on my Apple TV even though I could browse the library and select any video, they would not load.

What ended up working on all my devices is essentially running plex behind a VPN, AirVPN in this case because I need the port forwarding, and enabling remote access with the port assigned in AirVPN.

I followed this guide, in case you’re interested: …invak.id/…/guide_plex_remote_access_without_port…