I love Spotify's algorithm. My wife loves my Spotify algorithm & hates her own so I know it's not universally great but it's still incredibly impressive & I value it a lot.

That said: there's trade-offs. I don't browse music forums but I have in the past (when I had more time) & it's incredibly rewarding. I also get a lot more value from new music discovered through friends than through Spotify - there's something about intentionality that adds to the listening experience. I love when Spotify plays me a great song from an artist I've never heard, but I'm much more likely to seek out that artist on a personal recommendation.

Not everyone has the time, energy or expertise to host Jellyfin, but for those of us that do, there's probably room for both of the above listening experiences in our lives.