She's famous for being a good female basketball player. Some have tried saying she is skilled enough to play for the NBA, but in reality, she wouldn't even be good enough for the NBA G league. No disrespect to her or to women though. Biologically, men and women are built differently.
I'm not sure Larry Bird would be a good comparison in terms of a male NBA player other than they are both White. I would say she is mix of Stephen Curry and Luka Doncic. The stature of Curry but with the play-making skills of Luka Doncic. She isn't extraordinarily athletic and fast (like Luka), but she still manages to get to her spot when she wants. She is also a decent rebounder for her size (similar to Curry). She is a competent defender who can show flashes of being "good" on that side of the court but is no defensive stopper by any stretch of the imagination (much like Curry/Luka). Like Luka/Curry, Caitlin can shoot from just about anywhere on the court. She clearly excels more on the offensive side of the court while making her teammates better players.