I work with WiFi all the time and let me tell you that after looking at usage graphs for what feels like forever, you don't need 1Gbps WiFi.
Most clients aren't averaging 50Mbps, nevermind 500-1000. What you want is consistent wifi. Something that doesn't show down because you dumped everything and the kitchen sink onto it. There's a lot of good ways to ensure this and nobody wants to pay for it.
Simply put, dumping 30-50 client devices, between cellphones, tablets, laptops, TVs, gaming consoles, IoT things (like smart lightbulbs, fridges, etc), and in more cases than I'd like to admit, desktops... Onto a single multifunction wireless router, with little more than dual band WiFi, is generally going to suck.
I usually hear a chorus of responses to this because people don't really put together that their smart watch, Alexa, smart smoke detectors and thermostats, all count as wifi devices. It usually doesn't make a huge difference how much each device is actually using the wifi, the fact that all of them are connected at the same time is, in and of itself, a problem with only a single access point where that contact can be made.... Dual band or not.
I don't consider mesh solutions to be solving the core issue since all of the client traffic needs to end up at a single device with all the same problems. The fact that they get filtered through what is essentially, fancy repeaters, isn't super relevant. The problem still exists. But if you suggest an infrastructure network with multiple wired access points, people generally take one look at the price, then leave and go buy the latest night hawk from Netgear at the nearest electronics store and put it out of their mind, since it's "good enough" (which it isn't, in the current WiFi climate).
I want people to have better wifi, but I can't save you all from yourselves. Now the IEEE is taking on the job, I suppose. Trying to "fix" wifi because most people can't be arsed to install a reasonable solution for what they actually need. They'd rather spend literally thousands of dollars a year on fast internet service that they don't need and can't use because it's all getting filtered through their sub $300 network that they've had (or will have) for two+ years, and then have the gall to complain that their wifi sucks, and they don't get it because they're paying $100+ a month for their fancy gigabit or multi-gigabit internet connection.
I had multiple wired access points in a rental apartment with high wife approval factor by running cables in cup hooks along the ceiling lines. They self-tap into the wall and leave little more damage than would be caused by hanging a picture. I put a hook every 18 or so inches for support, and ran a cable under a door, up the door frame, down a hallway and into the living room (from a bedroom where we had the network gear). From there, I only had to mount the access point and connect everything. The cables were always out of the way, and I used white cables to help hide them against the walls. It wasn't perfect, but the limits of renting are a bit limiting.
I only had two in that place, which was plenty, and we never had bandwidth issues accessing the internet from the wifi.
The fact is, nobody is building homes with wireless access points in mind. Whether rentals, condos, or new homes, they don't have access point hookups. Many are now being wired with Ethernet in the walls, but nothing in the ceiling. A skilled wireless engineer can easily take a floorplan and build a wireless design with access points in ideal locations for maximum coverage and speed. Simply doing this pre-work and installing ethernet in the ceiling at these locations, is all that is required, yet, I have yet to see any builder do it. The same can be done to retrofit rentals as people vacate units and updates/renovations are done, yet, nobody is doing it.
Those that own their home need only to find placements and pay someone to wire them in. The whole thing only needs to be done once, ever, and the locations should be fine for use for the long term.
Fact is, neither builders, nor property owners, nor homeowners seem to have any interest in the practice. The only time I have personally seen or known of any location that is properly wired for wifi, is when someone has hired such wires to be custom installed. If it was done by default, rather than as an afterthought, retrofit or renovation, then it may be more common that people pursue such solutions. The price problem is another major hurdle, though I stand by the analysis of people paying literally several thousand dollars on internet access from an ISP, compared to a few hundred at most for a router during the same timespan (usually 1-3 years). IMO, that's a bit like paying $50,000 over 10 years for access to the highway, but never buying a car worth more than $1000. It's silly.
My main point is, solutions to these problems exist, but people simply won't pay more than a few months worth of ISP fees for their wifi hardware, then they expect it to perform well and last for many years. They will turn a blind eye to the environmental issues that plague them and instead blame everything on lackluster devices that underperform that they will continue to refuse to pay a reasonable amount to actually get quality access equipment.