ive been using kodi (xbmc was better moniker) since google killed sagetv. i recall attempting plex, but it seemed to lack some open/extensibility (its been awhile).
i have a side project i want to make as a modular plugin generating a cable layout with original air orders and networks/channels… kodi seems most optimal, but ill admit its been a long while since i looked at plex.
so why plex over kodi?
I just created accounts for my family, so they didn't need to create accounts or anything. And no you don't need ip address specifically if that's what you meant. You can use dynamic DNS services and reverse proxies so you just have a regular web address like "https://jellyfin.somewebsite.com"