Deco X55 Pro

I have a near identical set up to you in that about 2200 SF and version FIOS. I have three TPLink x55 pros (WIFI 6) about the home and have IMMACULATE coverage. I know it isn’t in your list but would still highly recommend. That said, if the x55pro is sufficient, I think any of your listed options would do even better. So my input is that you can’t really go wrong

Installed Deco x68s at my place, x55s at in laws, x55 pros at friends, and Linksys Velops at other friends, all hardwired, rock solid and roaming works flawlessly. All of them having 20-30+ clients.

Installed Deco x68s at my place, x55s at in laws, x55 pros at friends, and Linksys Velops at other friends, all hardwired, rock solid and roaming works flawlessly. All of them having 20-30+ clients.

I am not sure if it is the best but my TP-Link AX3000 Pro has never let me down. That is it doesn't seem to need to be rebooted a lot. I am not saying that TP-Link is the best and only brand that you should ever buy though! I had their AX1800 that was purchased from a local Walmart before the 3000 and it kept having to be rebooted which was annoying as ever as you might imagine! I was still in the insanely short 14 day return window and returned it. The AX3000 pro only seems to need to be reset on rare occasions. and I do mean very rare! Note this is not the AX3000 with the Intel processor. I wonder how many people get confused on that! The Intel one does not have a 2.5 Gb WAN port and I also never tried that one. An easy way to spot it is it has Intel's logo on top but other than that looks just like the Pro model. As I have said, I never tried the Intel one so I have no idea if it is reliable. I am hearing a lot of good things about Asus and Netgear. Do these ever lose the connection and need to be rebooted? If so how frequent is it? How rare is it for them to need this? I prefer router I can just set and forget, and not have to constantly get up to reboot it. I am the sort of person who if I have to keep rebooting it, I will soon want to just boot it...to the recycling center or even return the annoying thing!

I've used the S4 AC1900 trio (older but worked well), along with the X55 trio. Still Wifi 6 but decent coverage. The one failure was the Eero Mesh 6, stopped working but got a replacement set from Amazon and shipped the old set back. No problems since then.

Arris Surfboard and TP-Link Deco X-55.  I own both and they have been bulletproof. 

Wireless backhaul is fine for 99% of people. Unless there's some specific reason you need the router, you can send it back. The mesh units offer most routing functions. Then it just depends on how much you want to spend and how big your space is. I would think 2 x55s would cover you well, but you might want 3 units to make sure. They're very easy to setup. Go from your modem to the mesh unit. 3 pack is 150 on Amazon right now. Doesn't work just send it back. But I've been using tplink mesh for about 8 years now and have had a great experience.

Depending on your budget, 3 tplink x20s or x55s should cover you. Hook 1 into your modem, and then you can simply plug them into an outlet and add them to your network. I wouldn't get anything that says "extender" and I see no reason for a "traditional" router anymore. I spent a bunch of money on one of the most "powerful" routers out there a few years ago in our 4000 sqft house and it was worthless. Discovered tplink mesh units and see no reason to change. 3 units in our new 2900 sqft house and we're covered all over the backyard and out to the street

I've had great success with deco mesh systems. I personally have been using them for about 8 years, currently using the be63's which are incredible. But I've installed several setups in friends and family's houses and they're a breeze to install, powerful, and are incredibly reliable. Not very sure why you'd want to spend more

I running openwrt on m720q i3-9100 8gb ram and one nic,2 vlan's wan and lan and for wifi deco x55 as access point fiber 1000/100 whit pppoe,on full 1000 download the cpu is 5-10 percent,yes the m720q is overkill for openwrt but i scoret two of them for free so why not,if you dont want to mess whit H/W NAT run openwrt on x84 any modern cpu give you full speed.