If you're thinking about withdrawing your Bitcoin into self-custody from River, then get ready to submit to a biometrics scan by a 3rd party Ai company called Socure.
Apparently River is willing to pay you $100 to give up infinitely more KYC requirements than any other exchange out there! You will be tracked through advanced facial recognition by artificial intelligence and that data will inevitably be sold over and over again. I guess everyone has their price, but for me, River can keep their $100 and go fuck themselves!