Always look at the QVL (qualified vendor list) on the motherboard manufacturer support page for the particular motherboard, especially with AMD CPUs on B450 boards.
I'm sure that there is 3200MHz memory that will run well, just choose wisely to avoid issues. The Picasso CPUs are a little harder to find data on than the others though, you may be wise to select a memory and then contact the memory support techs for assurance.