In the native app, it would be nice have the option to either embed (like currently) or link (proposed new functionality) to an asset on the local drive. This allows a user to modify an image or a vector without having to manually re-embed, and resize the asset every time a change is made to the asset. This is invaluable functionality in a program like Adobe Indesign.
Maybe there can be a place where the user can see all embedded vs linked assets and also a button where the user can instruct (the native version of) Figma to update or relink all the images, similar to how Illustrator and Indesign have a Links panel.
There is a Sketch plugin that sort of does what I’m talking about. It provides option for the user to import an image and then update all linked images.
I imagine this functionality might be hard to develop for the web app version of Figma which is why I specify it being functionality for the native version.