The performance of Jellyfin is so much better in my experience. That and the FOSS benefits won me over quickly, and I have had a lifetime Plex pass for years.

The downside is that you have to do a little IT work if you want to share with family in an easy (for them) way and use https. For sure, it’s a thing, but for me as a non web dev it was worth it.

Now I can give family and friends a URL, login, password, and one or more app suggestions depending on their device and type of media. And all of them seem to have snappy performance while not showing my people ads or hitting them up for paid services.