[rightbyte]

Spotify's algorithm works really well until you let someone else use the account. I wish there was a "child mode", "party mode" or whatever to disable updating recommendations.

[duckmysick]

Perhaps Private listening is what you're looking for, assuming it's working as advertised.

https://support.spotify.com/us/article/private-listening/

[unyttigfjelltol]

Pandora gives people granular access to the songs that are being used as the basis for recommendations. You would just delete the songs used by guests.

[dento]

There is. Called "private session" in the settings.

[rightbyte]

Oh ... today I learned. Awesome.

It is cryptically called "hide activity" in my translation of Spotify.

[fragmede]

It does. It's called "Private Session".