If your considering WIFI as a factor then get a hex refresh (or better router) and tplink or zyxel wifi7 APs. No point IMHO of going anything less than wifi7 at this point. By the time MT figures out the dogs breakfast of wifi packages and capsman, wifi8 will be out. In other words, dont tie your routing device to wifi technology.............
First of all, I totally agree with you that it's best to separate WiFi from routing.
While it's nice that WiFi technology constantly evolves, my opinion is that it's mostly driven by marketing rather than real-world need. People are chasing higher WiFi speeds often for no good reason, just like they were chasing megapixels in photocameras a decade or so ago.
For example, everyone I know has 75-400 Mbps Internet connection. Higher WiFi bandwidth won't make any difference unless they have significant local traffic, which usually is applicable only if they have a local server. Probably 99% normal home users don't. They may spend $600 or multiples of $600 on BE devices and not feel any difference at all.
I think AC Wave2 reached that sweet spot that satisfies the needs for 99% of users. I'm actually in that 1% that has a local server, but most of my devices that need maximum throughput are wired. The ones that don't have such option can still reach 400-600 Mbps with AC AP. This is plenty enough for everything but specialized tasks like video editing over LAN. In the spot with the weakest signal I can still get around 300 Mbps.
In my opinion, it would be better to spend the money on higher quality stable access points and get enough of them for good coverage. With AC technology being considered old now, it has excellent price/performance ratio. I got enterprise-grade sophisticated used Ruckus R710 for $60 about a year ago, they are probably even cheaper now. It blows regular SOHO wireless routers out of the water.
Also, keep in mind with 6 GHz the range is even worse that 5 GHz, meaning one needs more access points to cover the same area, increasing the total cost even further. I'm sure WiFi manufacturers are very pleased with this law of physics.
By the way, I hope you do know about controversy around TP-Link... I see you have been recommending them here and there.