Zoom branding banner image on registration page doesn't scale correctly

On the registration page for Zoom meetings, there's a point where the branding banner image stops scaling correctly, and only shrinks the width of the image, instead of scaling both the width and the height.  This makes the branding image look squished, and it looks unprofessional.

You can test this on PC by changing the width of your browser window.  At a certain window width -- possibly the width where mobile phones become relevant -- the page layout will change.  The grey background disappears, and the banner image starts to look squished.  At that point, the page only scales the image width while maintaining constant image height.