They might be printed on there, but as long as it looks like it has wifi (pointy units or the wifi symbol on your phone), people will buy it.
802.11 isn’t anywhere near common knowledge. That’s why it was named WiFi and trademarked to begin with.
Regular people sure, but this is Lemmy. The nerd concentration here is significantly higher than average. I dunno, just thought it was fairly common knowledge in tech literate people that wireless G is outdated, AX is current, things like that. I can’t imagine spending money on a router without knowing the basics, which I’d consider the G/N/AC etc standard to be the minimum you need to know for making a decent purchase.