My old person trait is that I think 'ghosting' is completely unacceptable and you owe the other person a face-to-face conversation.
I find it annoying too and for about 9 months I had a cracked camera on my phone so no QR worked for me, most places had a physical copy when I couldn't or I just had to leave. Now I don't like being difficult, but I wish I still had that excuse. I just don't like it.