hey SONOS, you are welcome to respond to customers in here, just saying, it’s been a month

That's not what this forum is for.  Although Sonos reps occasionally post here, it is mainly a user to user help forum.  As to the answer to your question, long press on the favorite, choose Remove from favorites on the menu that pops up.  

Thanks for the note, that solution does not work.  There is literally only one option on long press and that is to “Save to Sonos Favorites”.  In the past the three dots opened up many options to do with a station, there is now literally nothing other than an arrow that plays the station, and what you mention which saves it even further.

For the record:

• Sonos chat has no humans
• Their support number mentions they know they missed things are updating, ie they know they released a broken app
• The estimated wait time for support is currently SEVENTY MINUTES

If you have Sonos stock it’s already to late to sell it, they’re down 18% in the last 3 months...

I don’t know what is different about your system, but here’s what mine does:

Favorites:

After long press: