I don’t remember the last time I clicked a mailto: link, and probably haven't seen one in a long time. And it’s configured to use the default Windows 10 Mail ap

I don’t remember the last time I clicked a mailto: link, and probably haven't seen one in a long time. And it’s configured to use the default Windows 10 Mail app, which I don’t use. Can I change it to Firefox and Gmail? Sure, but why would I bother?