How to render an element after all React elements have loaded?

Question

JavaScript

Actually, there are i-shki that open popover when clicked (pencils on the right).
What is the best way to make them either rendered or become active only after all elements on the page have loaded.
The problem is that after loading the elements are shifted and this pop-up overlaps some girls.

Answer 1

via React.lazy() more info here https://reactjs.org/docs/code-splitting.html#reactlazy