Is there a way to split clicks and events for a link between a direct click and a QR code scan?

It is not possible to differentiate between a direct click and a click through QR code scan as-is, however you can track direct clicks vs. scans by modifying the link for one (or both) mediums by using Analytics Tags.

For example, if your Quick Link is https://example.app.link/test, you can publish the link with the tag noQR to see metrics between direct clicks and QR code scanned clicks: https://example.app.link/test?~tags=noQR