Posting because I'm interested too - would like to have one with 2.4 AX so that I can use the 5ghz as backbone if needed. But looking for ones that are cheaper. Looks like the asus is more than what I might need.
If only 11ax compatible only 2.4 GHz wireless stations are used and all APs are 11ax so that coloring can reduce interference then 2.4 GHz 11ax may be an important feature. Otherwise, with lots of other 11n networks around and stations that are only 11n compatible I would not rank the 2.4 GHz 11ax need too high in this year if that would limit the choices of APs to only one model.
Who wrote about phasing out 2.4 GHz wi-fi? I don't wish for this and I don't see this coming in the next years. Lots of devices with only 2.4 GHz single band wi-fi are in use and are being produced.
I would still not over emphasize the need for 2.4 GHz 11ax in 2023. I would expect the use cases with high need for this to be limited this year.
In city, I have lot of of 5Ghz network, so I have activated auto channel and some times I'm on DFS zone, and Wifi fallback to 2.4 during the DFS move, we have airport near of us, so DFS is triggered often
I use 2.4 for management and backup only, all devices connect only to 5GHz, this is like 6 to 8 devices, rest of them connect to ethernet or fiber, backbone is done by 10gig fiber, noe problems but only wifi now is slowest connection i have - 2400Mbps link but i only geting like 650Mbps on openwrt, on ofw is 1.7gig without problems.