But if you have a package manager, 'yum install plex', 'apt install plex', etc. should all have the same experience. (actually the correct incantation of docker to get plex running correctly has taken hours of my life away). There are indeed many blog posts about getting plex to run in docker.

The problem is package managers are bad (well, apt is bad, rpm is pretty ok, freebsd ports are pretty good, there are many others) and package maintainers are bad, it always seems like the job they give the intern to figure out instead of making it a cornerstone of usability.

Seriously, spend a day setting up things running on freebsd with the packaging you have and it will be a breath of fresh air. Nearly everything you can think of all put together in packages in one place, and most of them start working in an expected way with zero configuration fiddling, install and start.

If package management were better, docker might not have existed at all, people keep confusing it with decent package management.