Interesting. Mine stuff is Apple TVs and I can pin libraries and unpin the defaults.

I have some of those defaults on but I confirmed I can still unpin all of them. On my devices it's a column of three dots next to each tab.

Only ones I cannot unpin are Search and Home. Home is just a carousel for each of my pinned sources. Which differs on each device.

I rarely use the Home tab but it sounds like that is where people have the most complaints.

I use discover on one my TVs for finding new content. Told plex I have every service and then use their curated lists to watchlist content that is automatically pulled in via radarr or sonarr. If on pin it, it disappears from the home tab.

I also have a pin on live tv because someone wanted to watch local sports so I bought some used tuner thing to play around with it. The live tv interface is weird but home does respect the pin vs unpinned status.

I also noticed there are difference depending on if it's your library or someone else's and if the person is in the "Plex Home" a different concept than the Home tab.

I think given more time Jellyfin will likely surpass plex, it's just not quite there yet. The plex interface is not intuitive. And there is no sign they can fix it.

Most people don't have the comfort level to play with the options. I've had to walk multiple family members through pinning and unpinning each time they've gotten a new device.