To be honest, I saw a lot of new casinos with amazing sites and even licenses, but so far I have no confidence in them and only test their free games where possible.
To enter real money there I must be 200% sure that there will not be any problems. and this is difficult to understand because there are very few reviews on new casinos.
If you find a new casino as more amazing then existing ones and you had great experience with their free bets as well then if you afraid of not having many reviews about them then you can simply try their legitimacy with very minimal amount because every popular casinos are started from the scratch who knows you found another casino which is going to be popular in future.
That is correct but from a gambler's perspective why would you even want to risk any amount when other trusted casinos are there running smoothly and either the new casino has some unique games or it is operating at a lower house edge, which I mean how low one can go when the market standard is already 1% house edge.
Any latest casino that enters the market needs to understand that there should be something unique about them otherwise why would a gambler leave their regular casino and visit you? And we all know that the gambler base is pretty limited in crypto and it is being already captured by few big casinos so either you bring something new and disrupt the gambling industry or you operate at almost 0 house edge which lures players to think about playing at a new casino.