You have a point in your latter dude question, it is a bit risk that you will use VPN in a casino because your casino region is restricted but it is still okay for the casino to use VPN which in the end you can still reverse by the casino when it is with a huge amount of money on their casino platform.
It seems like the casino just gives a meal when this is the case. So it's better to play in a casino that we don't use any VPNs for the last time when we do any
withdrawal transaction we have no problem
Guess what, there’s still some user that trying to play on a casino even though their country is restricted to play. For some reason, they still risk playing on casino that restrict them and hope for the casino not caught them.
I believe this is the reason why many popular casino use mirror link and VPN friendly terms to secretly let users play in their casino without jeopardizing their license.
In most case, user will not be asked to do KYC if he will just play like a regular gambler.