How to reset a user's password?

I don’t see any “forgot my password” option on the log in screen. My pod is not open for registration, if that matters.

I also don’t see an option to reset it in the admin user panel.

How can I reset a user’s password if they forget it?

Resetting passwords requires that your pod is able to send emails, if you setup mail sending the reset password link should appear on the sign in page.