There is nothing nicer than seeing everything in your own language in a casino so that you also understand what you are doing.
The explanation of slots or table games that you then get in your own language is clearer.
You can also read and understand the casino rules.
The language list that you will find here indicates which languages are available in which casinos, so that you can make the choice yourself.
You can also often play in your own currency. Which is as pleasant as in the language you are conversing with.