Figma's #1 missing feature (by a mile) is children/slot support for components

Imagine you could make a component with an empty frame and mark that frame for children. Even add auto layout to it. This component becomes a donut 🍩 component where you can put other things into it they are laid out according to the frame.

ex: Your web navigation. One team might own the "chrome"/frame of the app while another team owns the content that goes inside of it. As a content member I should be able to pull in the frame component blindly and never have to think about it. When the app core team pushes updates to the app frame I get those automatically and separately from what Im working on. Almost every app/website uses this paradigm. In the Frontend web dev world you can think of this as your layout component (Astro/Next/Sveltekit)

I've gone several years praying for layout components to be announced at Config only to be let down every year. 🙏