How to make Apple Mail my default email application?

For many years, I've used Apple Mail as my default email application on my MacBook Pro, with a xyz@mac.com email address. Also, Safari is my default web browser.

Recently, I was required (by a new job) to create a gmail.com account, and to use that exclusively for all work-related email. To keep that completely separate from my personal email, I only access the gmail account within Google Chrome.

Now, Chrome has somehow hijacked my MBPro, so that any time I click on a hyperlink in the form of an email address, Chrome launches itself and take me to straight to Gmail. How do I revert to the previous stuff quo, where clicking on a hyperlink email address will launch (or switch to) Apple Mail?