This is cool but in the last 12 years I have never written a cover letter for a role or read one as a part of the hiring process. Maybe other markets outside of tech still use them or for entry roles.
For those, you now may have to talk to a chatbot by Apply Z[1] et al.
Who comes up with this stuff? I can only imagine the conversations in HR: "Cover letters. That's it! Now we only get applications from people who are involved. The ones we're looking for. Amazing!"