Rounders was really good. A few great actors with Matt Damon, John Malkovich and Edward Norton.Uncut Gems is much more realistic and shows the dark side of gambling, the damage it inflicts on an individual and the people around them.
Rounders does a good job of this as well.
The rest are sensationalized portrayals.
Casino is an over the top POS mob movie trying to capitalize on the goodwill the leads built in the far superior Goodfellas.