You need an internet connection to connect to a offline LAN Plex server… Just so unessessery, otherwise it doesn’t find your server (I was quite confused on that one, when that started happening) Plus having to pay for multiple user accounts, all just seemed like it was heading towards user extortion. It also lacked hardware transcoding at that point in time, which isn’t a huge issue, but did make it harder to run if you had a client that didn’t support a specific codec.

While jellyfin requires zero internet to be functional and login, supported hardware transcoding before plex and has multiple user accounts usage out of the box, at zero cost.

I stopped using Plex shortly after they started forcing logging in with your online Plex account to connect to LAN only based server. The writing was on the wall all those years ago. Who wants to be locked out of their media when the internet is offline, completely defeated the point of self hosting local infrastructure

Jellyfin, while lacking a bit when I first migrated, has continued improved over the years and it has been joyful to use. Plus Jellyfin supported hardware transcoding before Plex did, which was a gripe I had with Plex at the time.

I stream from my server remotely and share with Family without hassle. I dunno where Plex is trying to go, glad I bailed long ago

You better off enabling compression on a dataset.

Dedupe, even with the recent improvements, has huge overheads and will generally degrade in performance as the dataset increases in size, as it needs to keep track of the ‘routing’ table in RAM to redirect the request deduplicated blocks to the actual stored data. Apparently the latest openZFS release reduces the speeds loses over larger datasets, but it’s still subpar compared to compressed data

Video files are already heavily compressed, you’d be better off transcoding it to a more efficient media codec, like X265 or AV1, to save space on video files