Not quite a screen shot, but the text:
uBlock Origin has prevented the following page from loading:
Because of the following filter:
/click.php?key=*&zone_id=$document Found in:
uBlock filters – Badware risks
The warnings pop up and hitting proceed shows scammy fake virus scans and such. To make it clear, it's not luckypatchers itself, but the dodgy full screen ads on load.
A QR code just links to a URL. If you link to a URL that you own or control, it'll be fine. The problem comes when people use a link shortener that allows the destination to be changed later, or if they lose control of the domain or its backend.