More precisely, those who are currently still joining the mixer signature campaign do not use the exchange wallet, usually they will experience deposit restriction problems which result in frozen assets.
Mixers are still too sensitive to deposits from mixers, maybe if it is from your own wallet it will not be detected if you send it to the exchange, but don't be too reckless, usually the exchange detects it comes from the mixer wallet.
My own casino has no problems, because some exchanges still accept it until now.