I think you're unlikely to have a very good experience with Tailscale behind CGNAT if you're doing anything high bandwidth like video streaming from a Plex/Jell

I think you're unlikely to have a very good experience with Tailscale behind CGNAT if you're doing anything high bandwidth like video streaming from a Plex/Jellyfin server. AFAIK Tailscale only supports 2 modes of connection: direct connect or relayed over WebSockets with their DERP protocol. CGNAT is going to limit you to DERP, which is not designed for transmitting a lot of data. For one thing, that could get rather expensive for Tailscale.