Youtube may block gambling content in countries where gambling is ban. That is the censorship youtube will do on gambling channels.
Just to clarify, if its law in those countries there is no maybe about those actions they will happen or the company will be expelled from the country. Google, alphabet, Youtube might be large global entities but they are still the significance of a kid playing in the street compared to a national government compelling you to follow not just guidelines but exact instructions. Gambling will be banned from any mention in many places no doubt, we only hope that crypto is not treated in any similar but is regarded as something relatively inert and neutral.