There are a few different ways to make responsive buttons in Figma. The first way is to use the Auto Layout feature.
To do this, simply select the button, then go to the Auto Layout tab in the Inspector on the right-hand side. From here, you can add constraints to the button so that it will resize automatically when the screen size changes.
Another way to make responsive buttons is to use the Frame Grid feature. This is particularly useful if you need to create a button that needs to be a certain size on one screen but a different size on another screen.
To do this, simply select the button, then go to the Frame Grid tab in the Inspector. From here, you can add or remove columns and rows as needed so that the button will resize accordingly.
You can also use both of these methods together to create even more complex responsive buttons. Simply add constraints using the Auto Layout feature, then add or remove columns and rows using the Frame Grid feature. This will allow you to create buttons that are truly responsive and look great on all screen sizes!