So, what will happen if what you did is that before sending to Binance is you have your own personal wallet in the middle before you send the funds to Binance?
Like 3rd party wallet -> Your personal wallet -> Binance,
Could Binance still able to find out about the "mixer" thing you said that could be the reason of restricting your account?
OP already answered this question in the OP, I guess you misunderstood the whole explanation. Let me sink you in.
The OP is asking for you not to send Non-Kyc'd coins, particularly mixer coins, directly to a CEX account; instead, first send them to your non-custodial wallet, then purchase KYC'd coins from a CEX and mix them with your Non-Kyc'd coins in your non-custodial wallet before sending them to an exchange. This way you can present source of funds if requested..
Most exchanges do not allowed mixer to exchange deposits.