I use Jellyfin client on my new Samsung TV via a Google TV dongle (ONN tv, $25 at Walmart). Seems to work well.
My only complaint is the stream volume has been very low after a recent update. Downsampling helps but seems like it shouldn' t be necessary.
I'm just waiting till I can install SteamOS honestly. Love my steam deck, and wanted to turn my old win 10 PC into a Linux machine but has issues getting any distro loaded because I'm dumb and it's old. Hoping that when they release SteamOS for the chumps I'll be able to work it though probably will just be left holding an old win 10 pc lol.