What is the advantage of Vue composition API?

Question

Vue.js

Good afternoon, I'm trying to find intelligible information about what is the advantage of the Vue composition api in vue 3, but I can't find it.
In vue 2, everything is somehow convenient and clear, everything is structured on the shelves, methods to methods, calculated to calculated, in vue 3 all this is in one setup, you need to import computed, ref, etc. prescribe additional functions, return all functions through return.
So far, I see only hemorrhoids in all this, if someone has already figured it out, please tell me.

Answer 1

Personally, I liked two things - the separation of layout and logic and code reuse. I have two components in my combat project, one of which had to be divided into three, and the second one is just huge - both a sprawling template and just an endless footcloth script. I'll wait for a stable release of vue3 and will remake it on composition api.
Another plus that I found for myself is normal debugging. For some reason, my devtools debugger has a one-line offset in the code that is in .vue and works perfectly fine with pure .js files. And console.log also lies on 1 line in the first case and accurately displays the line number in the second.
Well, I recommend watching https://youtu.be/v6AVfIupNB8 and https://youtu.be/Ix8wcwrnPns