Yes, Money Laundering started with banks not bitcoins because banks came into existence before bitcoin so the money laundering in bitcoin by criminals started with the banks. No more no less.
if money laundering cannot be used in bitcoin because bitcoin is digital money, and it is not real. so we can't mess with bitcoin or fraud. because everything is set. but if money laundering is in the bank, it is undoubtedly true sometimes, because money in the bank is real and can be used by anyone.