I am looking to pass data to a vue 3 root instance. For context I am running various stand alone vue apps on a webpage and these are generated as there own instances.

When I set up the HTML like so

<div id="app" data-user="user"></div>

Where data-user contains an object is there a way to grab this when initialising the application like so

createApp(RecommendedJobsWidget).mount("#recommendedJobsWidgetInstance");

I essentially want to pass data-user into RecommendedJobsWidget

Vue 2 had propsData but it has now changed and I can't seem to find any relevant information from the documentation on createApp here https://vuejs.org/guide/essentials/application.html