Anything here
https://www.asuswrt-merlin.net/
or here
https://www.voxel-firmware.com/
As you'll have proper support without having to go with an open source firmware, which may end up not supporting all the features of the router you're getting.
Avoid 802.11ax for now, wait for second generation routers, as the current models are a mess. They either have poorly working firmware, lack support for some of the key 802.11ax features or claim to maybe getting them at some point in the future via a firmware update, or have potential hardware limitations which means that some things simply won't work, as in the case of some of Netgear's models, as per the linked to SmallNetbuilder article.
Interesting post. While I cannot comment on WIFI 6 routers I can say that WIFI 6 adapter cards are great. The only issue is that you need to download the driver's from Intel's website before your PC will recognize them. The clock on the AX200 is 160MHZ vs the 9260 @ 40 MHz. I have mine paired with an AC router but I can do things I never was able to with just the adapter.
That's not clock and isn't really related to 802.11ax.
What you're talking about is channel width.
You should in fact set your 2.4GHz radios to 20MHz or 20/40MHz if you have any neighbours, as otherwise you might interfere with them and them with you.
As for 160MHz channel width, it's useless if your router doesn't support it and very few routers have so far and that's only for the 5GHz band. Although most 802.11ax routers do, but there's the small matter of having a compatible adapter, of which your Intel one is so far, to my knowledge, the only one. I have an R7800 router that supports it, but I have no reason to turn it on.
Another thing to keep in mind, is that 160MHz channel width is terrible if you're using multiple devices with your router, although 802.11ax might've sorted some of that out.
You can read a bit more about it here.
Updated - 160 MHz channel bandwidth is an essential feature of 802.11ax. We take a look at whether it means trouble for your 11ac network.
www.smallnetbuilder.com
I like dlink because they're cheap and have good security. For a gaming/multi user environment they have a traffic sharing option built in that works wonders when you set it up properly.
I'm using a cheap $30 2.4ghz and with 3-6 users everyone gets some and nobody gets it all unless they're the only user and nobody has issues with speed and everyone watches videos and plays games and this is on a 5megabit connection. You also need to enable wireless enhance and multicast streams but on one of the cheapest routers they sell you get good performance with multiple users.
You can get a faster response with the new 5ghz AC so I would go with a dlink with N and AC support for newest devices and maximum speed with minimal lag.
Sorry to burst your bubble, but D-Link has TERRIBLE security, they rarely if ever update their firmware and their routers are among the most prominent ones to get hacked.
In fact, they are so bad, the US FTC took them to court for their terrible security. Also, what you're showing are pretty standard router features these days.
I would not recommend anyone to buy D-Link if it's an internet facing device.
Agreement settles charges D-Link left users open to critical and widespread threats.
arstechnica.com