The trick I discovered is to have a 500-sqft home. Wi-Fi 6 has been great!
this, and... how many 6/6e routers don't try to pressure you into "download our app so you can easily control your outer" (at the cost of privacy)
It's true, I still run relatively old Unifi nanoHD APs (3x) and considered their newer U6 Pro AP for my house. However, the small benefits that would result from this are not worth the price to me, especially since everything works great with the older gear. We also don't have that many wifi6 clients in the family yet, so I discarded the idea.
I got a U6 Enterprise the other day, Mac Studio 12 feet away with one partial wall in between tries and stays on 6GHz for awhile but then falls back to 5GHz pretty quickly.