Here's my personal experience switching from Plex to Jellyfin. Everyone's needs are different, but, for me, Jellyfin has been a much better experience.
I used Plex for years and always hated it. It didn't let me customize the home screen in the way I wanted, so there was always a bunch of junk on there that I didn't want and couldn't remove. It also ran very slow on my Samsung TV (1), starting up slowly and responding to the press of a button after about a full second (it had done this for a long time through multiple versions of the app and factory resetting the TV without any improvement; also, the TV is only a few years old).
I got frustrated enough to finally switch to Jellyfin about 4 months ago. It was a pain to get the app installed on my TV (the app isn't in the TV's app library, so it needs to be installed as if you're a dev), but once I got it working it works well. The app starts up faster than the Plex app and is very responsive to button presses.
Back when I was using Plex, I really wanted to customize the home screen to remove certain components and re-order what appears and spent a lot of time reading over settings/customization stuff which never actually let me do what I wanted. With Jellyfin, I simply went to settings > home and the intuitive options there let me do exactly what I wanted to do in seconds.
I can't think of any major issues I've had with Jellyfin, but here are a couple of thoughts. With Jellyfin I needed to create separate folders for what what Plex called collections and add them as libraries instead of collections. At first, I thought this was a negative but ended up deciding it didn't really matter as it works fine. I had a series of videos that wouldn't play properly on Jellyfin until I used ffmpeg to strip out the extra subtitle tracks (they had 42!), but never tested them on Plex so not sure if Plex would have handled them.
(1) I will never buy another Samsung TV, but that's a rant for another post. I considered buying an Nvidia Shield just to fix some issues with the TV, but probably won't bother now that Jellyfin is working well.
I got a Shield because neither the Chromecast 4k nor my LG TV could handle HDR content. Shield also replaced my Steam Link so that was nice. I changed the Netflix button on the remote to Plex with a button mapper app and then bought a properly sized Plex sticker to cover the Netflix button.
What issues were you having with the Plex home screen?
I used Plex for years and always hated it. It didn't let me customize the home screen in the way I wanted, so there was always a bunch of junk on there that I didn't want and couldn't remove. It also ran very slow on my Samsung TV (1), starting up slowly and responding to the press of a button after about a full second (it had done this for a long time through multiple versions of the app and factory resetting the TV without any improvement; also, the TV is only a few years old).
I got frustrated enough to finally switch to Jellyfin about 4 months ago. It was a pain to get the app installed on my TV (the app isn't in the TV's app library, so it needs to be installed as if you're a dev), but once I got it working it works well. The app starts up faster than the Plex app and is very responsive to button presses.
Back when I was using Plex, I really wanted to customize the home screen to remove certain components and re-order what appears and spent a lot of time reading over settings/customization stuff which never actually let me do what I wanted. With Jellyfin, I simply went to settings > home and the intuitive options there let me do exactly what I wanted to do in seconds.
I can't think of any major issues I've had with Jellyfin, but here are a couple of thoughts. With Jellyfin I needed to create separate folders for what what Plex called collections and add them as libraries instead of collections. At first, I thought this was a negative but ended up deciding it didn't really matter as it works fine. I had a series of videos that wouldn't play properly on Jellyfin until I used ffmpeg to strip out the extra subtitle tracks (they had 42!), but never tested them on Plex so not sure if Plex would have handled them.
(1) I will never buy another Samsung TV, but that's a rant for another post. I considered buying an Nvidia Shield just to fix some issues with the TV, but probably won't bother now that Jellyfin is working well.