How to properly use "modules" created by reactive frameworks?

Question

React

Situation:
We are writing an application in vue. One of our developers made a chat component. I would like to make a library out of this component in order to connect a chat similar to npm modules. That is, to prescribe something like this
import Chat from "/libs/chat"
I found the build target article - I assembled the library, but I don't know exactly how to connect it. It comes to mind to import umd, but when I connect I get an error
Object(...) is not a function
Is it an assembly, import, or component problem?