I’m on 20.5.1 too. On 5live and radio 2, I’m just getting a music symbol in the white square. That‘s in my garage. I’ll check again when I’m on the road.I'm still on 12.3.6 and it seems as though the big Icon is different on the OP's. The FM icon next to the station name is just the icon for Radio as can be seen at the bottom of this screen grab
What software version are folks on?