In a lot of places 2.4ghz is unusable because of the density of networks transmitting in the space. I live in a SFH in a lower-tier metro and only 5ghz is performant
>>pdntsp+(OP)
Most cheap wifi modules are all 2.4ghz, so printers, iot stuff, etc will almost certainly be 2.4ghz. Like 1$ cheap.
> only 5ghz is performant
Most of these barely need any bandwidth. A printer is possibly on the higher end of bandwidth, but I think the number of printers that support 5GHZ is possibly still single digits.