I've always used the cheap black plastic (so rust-free) frames from WalMart, but this last time around I couldn't find any. I went w/Hal2's theory of using the dealer-provided (black plastic) ones, but used a black sharpie to cover over the dealer's name. It looks bad if you look right at it (sort of like how the painter sees every little flaw when you paint a room), but quickly becomes forgotten.
I debadged my 2014 somewhat, but haven't done anything with the 2020. As Phil Collins sang, "I don't care any-mo!"