BTW I am not recommending you use a VPN to get access to any gambling site. You can do it at your own risk.
In my opinion. If he is from one of those restricted countries. He should not use the platform. Even not try to use them with a VPN. Because, If the platform detects he is from one of the restricted countries. They can ban his account by confiscating his funds. The platform also reserves the right to ask for a KYC. What he would do if the Platform ask for a KYC? So, I guess it's better to suggest to him not to use it if he is from a restricted country.
Ive seen already the wolf.bet and this is the time i visited their platform, upon checking they have sportsbook which is one of the game i would like to gamble and as a user its better if the landing page have a close panel or lessen the margin scope by the number of chats because its quite disturbing at the same time and also good with the chat they can send an image to share to other gamblers, might have a chance the account get banned if the management know that you are playing a country restricted better to find another platform which is suitable for the gamblers needs.