But then how would Arizona Ice Tea be able to print "$1" on their can??? /s
I'm in Ireland, I'd say a good third of printed on labels are not even in the right currency, as companies have a single UK and Ireland SKU. It's also understood that generally it's the retailer that sets pricing, not the manfucturer, so when a book has $9.99/£8.99 printed on it and a store sticker with €12.99, nobody is confused that that's not the exchange rates, or about which price they'll pay.
edit: it's been 99c for 3 decades, since they started business https://www.latimes.com/business/story/2022-04-12/az-iced-te...
I think the 99c price was originally for convenience stores because there were sales of 5 for $2 at Walgreens in 2018.
It sounds like you live in a heavily subsidized market - probably best not to try to draw generalizations about inflation from your specific circumstances, they are atypical.