I tried testing a movie from my home server in plex through firefox and repeatedly got this message, even after reloading.
I knew that they had paywalled the apps on mobile and streaming from outside the network but now they have also blocked watching your own movies through your own hardware.
I do get the point that making software should be able to sustain people but I dont see the move of plex as a fair thing to do. Yes, they have made great software but taking your home server hostage feels like the wrong move.
Even a pop up that says "we need you to donate please" would have been fine. make it pop up before every movie, play donation ads before any movie but straight up disabling the app is kinda cruel.
Anyway, i have switched to jellyfin and it is insanely good. please give it a try. you can run it alongside plex with not issues (at least i had none) and compare the two.
In any case, good luck. Let me know if you need help.
I'm not the person to ask this kind of question to. I use DNS-level tracking protection in my router (via NextDNS), but I'm not a privacy expert.
If you're living in a country where censorship is a thing and/or privacy is of upmost importance, then you should still use a VPN in addition to a Debrid service with Stremio. Or you can nix the Debrid and just use a VPN if you don't mind more buffering and all the downsides that come with torrents. (VPNs can be setup to run on a TV through DNS settings either on your router or TV itself, though this may not be 100% secure. Again, I'm not an expert.)