yes and no, you can’t return more than one variable / object, but as you suggest, you can put them into an array and return that, there is no limit to the nesting of arrays so you can just package them up that way to return
You can always only return one variable which might be an array. But You can change global variables from inside the function. That is most of the time not very good style, but it works. In classes you usually change class varbiables from within functions without returning them.