Never tried it. From reading others' comparisons of them in the past, I think the main material difference is that Plex has clients on a few more-obscure platfo

Never tried it. From reading others' comparisons of them in the past, I think the main material difference is that Plex has clients on a few more-obscure platforms than Jellyfin does (mostly TV operating systems other than Roku or AndroidTV). Me, my server's not strong enough to live-transcode past maybe SD resolutions, and a bunch of my stuff's in h.265, so I'm stuck buying nicer streaming boxes that have hardware h.265 decoding, rather than relying on e.g. Samsung's built-in OS (I eventually even had to give up on Roku, when I got enough h.265 content) so it doesn't matter a bit for me.