When i look for ram i see only the first cl16 they don’t advertise more than thatLook at the timings.
Anything with 14-14-14 or 15-15-15 or 16-16-16 will be top tier Samsung B-Die ICs and will cost a LOT more.
The 16-18-18 / 16-19-19 3200 and 3600 kits are going to be Hynix or Micron or low binned Samsung B-Die.
The QVL for your MB lists the Chip maker for each kit:
B550M AORUS PRO DDR4 QVL ( Vermeer CPU ) 20201110.xlsx (gigabyte.com)
I cant find a list, can you link me one ?Reviews, at least good ones. Also, Google "DDR4 IC list" , you will find sites that use members input as to the model of the kit, revision if Corsair, and the ICs it uses.
3200 is fine. 3600 is slightly better is all.