it might be linked to money laundry or not but I see different posts from which I deduce that gambling money are to be avoided in transactions...
Good gambling sites have their systems to detect deposits from dark sources (money laundering, fraudulent activities, or tumblers). They can suspend your account or refund your deposit if they detect such suspicious and dangerous things for their sites. They use to present it in their ToS (Terms of service)
If you want to enhance privacy and anonymity for your bitcoin transactions, you can use one wallet to receive withdrawal. After that, try to use Wasabi wallet or good tumbler as Chip Mixer. It is for your privacy after withdrawal from gambling sites. Remember that there is risk for your deposit after you mix your coins in tumblers as said.
Is it applicable for profits from trading too?
I think it is applicable for trading too.
