Hello @Ivan2560
It looks like there has been a tweek made to the Guest Favourite badge this week. I can see that there is now a percentage showing to let guests know if the listing is in the 1%, 5% or 10% bracket of Guest Favourites.
Not sure about the silver logo being a thing now but think it has probably been replaced by the new Gold one for all! Let us know if I'm wrong though...
If you want to find out more, have a read about the new Guest Favourite feature:
https://www.airbnb.com/help/article/3495
Best
Joëlle