Figma/Sketch are amazing for UI design, but some tools are better for interaction design - designing how each screen or button changes the scene. Also, you'll need to present your design to a client or team, so it should have ways to do that.
not the best to fine tune a design, but could be the best tool to mock and pseudo-program user interactions through various buttons and screens - either for a guided walkthrough or even an interactive demo! Yes, all the other tools do this, but this one has more options, like real programming, but without writing any code.