Workflow of file uploads in embedded forms

Hi again, so i got the embedded form thingy but i have some questions about the workflow of those forms.

For e.g in the first task of my process i let the user upload a file, as i understood the file is stored as kind of binary blob inside the process instance so i thought if the same form is used in the next task the next user will see the uploaded file but the form field is empty again.

Is it the default workflow in this situation to use a service task which uploads the file to some document management system and in the next step i have to use another form which fetches the document and displays it in the form? It isnt automatically added to some list of uploaded files, right? I have to do it using JS?

Thank you for this awesome software <3