It supports iptv but it’s not great at it unless you specifically edit the m3u down quite a bit. Op wants sports, which means a pirate iptv provider, which means they’ll get an m3u with like 22,000 channels and in my experience Jellyfin chokes on this. The experience in Jellyfin and kodi just kind of sucks. It works, technically, but it’s just not very good.

You’re much better off getting a cheap android box/stick and getting tivimate. It costs money (once) or you can get a cracked apk and side load it.

Alternatively you can get the m3u8/EPG from your provider and hand edit it down to a small handful of channels that you actually watch. Remove VOD, remove international content, basically remove everything but the sports content, and it’ll be much more reliable in Jellyfin/kodi. That said I still had a better experience overall just using tivimate with an unedited m3u/epg, less buffering and much snappier to use overall. Jellyfin was better than kodi but still worse. Maybe it’s better now, I last tried over a year ago, but I doubt it. Iptv seems to be an afterthought for these projects