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At least the Pixel camera app does native QR code scanning.

My Pixel 4a definitely did not the last time I ran into one of these.

Yeah it's just buggy (same phone here). Works 90% of the time for me (but 100% of the time for my wife, who uses a Pixel 5a).

I'm with you. NFC is awesome. I use NFC around the house for basic automation (Hue etc) -- and it definitely should be more common.

I was in a restaurant the other night that had QR codes printed on NFC tags, mounted on the wall for each table. The process of pulling up the menu was effortless.

NFC = Near-field communication