Figma offers a new Copy interaction feature, but it's not always clear how to do it. You need to select the interactions you want to copy and then copy using the Cmd+C/V. Once copied, you can paste them onto other elements. You can do that in the Prototype tab.
It was harsh for me to figure it out because there was very little information about it. I understand why this UX design is not mature, and sure Figma will make it better, but now it's awkward.
This illustration shows the areas you need to click on: