Is it possible to do something like this:

i currently have 2 VUE.js apps. They are independently deployed. They all use Keycloak for authentication.

Now i want to have a 3rd app, which combines the UIs or maybe even parts of the UIs of the other 2 apps in its UI at runtime. Just a bit like in Microfrontends but with VUE.js.

Normally you would think of using an iframe for this. But iframes have some disadvantages (security, usability, ...)

Isn't there a more "integrated" way in loading html (including its css and js) from another location, assuming its from the same domain or subdomain and using the same Keycloak for authentication?