I don't know (or heard about) anyone who wiped down a cereal box or similar in the last year. This probably varies by country and the communication that was there early last year.
I haven't wiped down anything shelf-stable in the last year, but Fauci said early on he throws packages in the corner for 3 days before touching them. It costs little for me to follow that rule, so I just buy cereal when I still have at least 3 days worth.