A form collects answers, not a document package with status and expiry.
Google Form is fine for questionnaires but weak for collecting candidate documents: files are scattered, there's no “complete / missing” status, no expiry reminders, and no revocable links. Doki collects a document package for the task.
For a questionnaire — Google Form. For collecting and tracking a document package from many candidates — Doki.
Technically yes, but you get scattered attachments with no completeness status or reminders. Doki gives a package for the task.
No. The candidate opens the link and uploads documents without registering.