Given the prevalence of one click install NASes (and by that I mean that Plex is a one click install, or even the whole *arr stack), I wouldn’t be sure.
Also that doesn’t account for people who are limited by available ISPs - some of us only have the choice of a single ISP, who might not be offering static IP, and CG-NAT makes port forwarding impossible. IPv6 would fix that but given we’re not much better off than we were ten years ago… I don’t have high hopes.
I think of those that run their own server and use remote streaming at all, the vast majority. All it takes is to forward one port in the router.
Of the 8 plex servers I have access to, all have direct streaming. And mine as well, of course.
Given the prevalence of one click install NASes (and by that I mean that Plex is a one click install, or even the whole *arr stack), I wouldn’t be sure.
Also that doesn’t account for people who are limited by available ISPs - some of us only have the choice of a single ISP, who might not be offering static IP, and CG-NAT makes port forwarding impossible. IPv6 would fix that but given we’re not much better off than we were ten years ago… I don’t have high hopes.