And now it's going to die. I almost feel like crying.
You can create different screens and set up click points, such as a button. Clicking the button navigates you to another screen in your design. This is called "interactive prototyping".
Figma puts these interactive prototypes on the web, so designers can create a visual prototype that can be tested on mobile and desktop devices. It's more realistic than simply looking at pictures of mockups. The biggest advantage is that it does not require developers to write working code and deploy a whole app just to click around and test it out.
Edit: As others have pointed out, it's not so much the existence of a feature that's missing from other software - it's the design and implementation of features.
Edit: Their autolayout implementation is incredible. And their tutorial videos! My god, they're incredibly discoverable and informative and SHORT. I'm going to stop because I could keep coming back and adding edits to this comment all day.
Not death, just... Adobe.
I'm old enough to remember when Adobe acquired Macromedia. They slapped some new icons on Dreamweaver, Fireworks, Flash etc. then completely neglected them until people abandoned them. I pray Figma fares better.
High chance Adobe increases pricing & wastes a year of engineering resources on integrating Figma with their Adobe Cloud over building useful features.
I can promise you it wont. None of their recent acquisitions have. Allegorithmic Substance is extra money on top of CC now they've bought it. Figma will probably remain an extra subscription too.
On cloud-based web apps, there is no opt-out short of ceasing use of the program entirely. Don't want their new features? Too bad, we're going to roll them out anyway, and there is no turning back after that.
I'm still puttering along just fine on a copy of Office 2010, so my opinions may not be representative of the majority.
It is to design as Google Docs or Sheets was to Word or Excel. No more passing around files - everything just works in the browser.