Hello,
Actually, FF is able to upload media by button action to firebase but in some case we need to view that media like image first before upload that image to firestore or DB.
https://docs.flutterflow.io/actions/actions/utilities/upload-data/upload-save-media#save-url-in-firebase-collection
Base on FF Docs look like it possible to upload image from local state to firebase but in real build it doesn't work like video below.