I also have a QR code in a photo widget. It takes me < 2 seconds to unlock my phone and swipe once on the home screen, and there's usually a delay as people pull out their camera, but there are a couple advantages:

1. People spell my name right. Even when I tell people how to spell my name exactly, they still get it wrong. If they scan my QR code, they always get it right

2. I can put all my info in one place. My vCard has my phone number, several emails, links to my social media, Discord, and whatnot.

3. You can include a photo, if you don't mind making the QR code much larger. With a well optimized image, this can be a nice addition.