It's a plus if they're cool with KYC stuff or even better if they are NO KYC.
Also, if you've ever taken money out from these places, please tell me how long it took. It's annoying when sites say INSTANT WITHDRAWAL, but then the casino's support says it might take up to 12 hours.
Here is where no one can tell you with all trust because a casino you freely use today by tomorrow or next you will realized that they aren't trusted anymore because they have seen that something large is between the account where they will ask you for further verification before you could be able to withdraw those funds out from their Gambling site.
What happened is that I can't give any gambling site 100 percent credits because they can fail and disappoint you at anytime, while gambling you should just mind the kinds of casino you may choose.
Gambling sites and other platforms such as crypto exchanges everywhere have a maximum withdrawal limit without kyc, because if anywhere allows unlimited withdrawal without kyc, bad activities like money laundering will easily become huge. For this everyone needs to develop a mindset of doing kyc and for this it is necessary to decide to use a reputable site. And when someone does kyc on a reputable platform then I don't think there will be any problem for him.