I can confirm and I do use this feature of jellyfin. It works great. The reader is unusable. I use Librera for reading. It’s great, free, and open source.
So my flow is biblio, mam, library Genesis, Anna’s. Then to jellyfin folder that it reads automatically. Then I can download that to any device connected to the jellyfin server. Local is easy, abroad through tailscale.
I have one of these and it’s outstanding:
https://www.amazon.com/Beelink-SER5-5560U-500GB-Computer/dp/B0B3WYVB2D
Jellyfin does.