Is it possible to edit an embedded view? Or can these only be viewed?
Embedded views are read-only. If you wish for someone to be able to edit the contents of one of your bases, you will have to invite that person to collaborate with you on that base, and that person will need to create an Airtable account.
If all you want is for someone to add data to a base (without needing to edit that data later), and you don’t need/want that person to have access to your base, you may be able use forms to get the functionality you want. Hope this answers your question!