ZenWiFi XD4S

I am using the RT-BE92U and XD4 as an access point in mesh upstairs in UK too. Good system using the app. Downside is ISP provide ONT which is gigabit ports only so anything over that is Wifi only. Shame as Router itself has a 10gb port and 2.5gb ports. Good Parental controls. Downside to Asus in general is using IoT on 2.4ghz. Asus and smart devices don't seem to like each other. (Reolink, aqara, govee etc!)

Avoid tp-link and any other CCP networking equipment. Don't intentionally put stuff with backdoors in them just to save a few bucks. Unifi is great but it's expensive and you really should use it wired. If you're just looking for plug and play mesh Asus has good offerings. Their AI mesh system works well

I'm using the 1800s as a node and my main router is the RT-BE86U. I can say that the 1800s is holding up super well as a node. I recommend the ASUS.

Yes, you're almost spot on. Avoid TP-Link Wi-Fi '6' routers. Those and Huawei Wi-Fi '6' routers are known to cause issues. You can use a TP-Link Wi-Fi '6e' router like the AXE75 though, those are great. It's just specifically the TP-Link and Huawei Wi-Fi '6' routers that are an issue. The ASUS AX1800 is an excellent choice! I've used one of those extensively for VR and it's excellent. As long as it's setup correctly I'd easily recommend one.

Wi-Fi 6 I can personally vouch for the ASUS AX1800 or AX3000 routers. Avoid TP-Link and Huawei Wi-Fi '6' routers for VR gaming specifically, they're know to cause issues. Their Wi-Fi '6e' routers are fine though. In terms of connecting multiple headsets to the same router, do you mean you're playing native games downloaded on the Quests [no PC] and are just using the router to get internet to them? Or do you have multiple PCs setup and doing PC VR gaming?

I've had zero problems with M1 for many years. Only went down once, and that was for scheduled maintenance in the middle of the night. Also, it's not just your internet plan that could be the cause of any issues. If your router isn't good enough, or is in a terrible position, or is overheating, or the bomb shelter is between your laptop and the router, you are gonna have issues no matter what plan you have. I have a standard 1Gbps plan but an Asus gaming router with ethernet cables going to the 3 heaviest users in the home – PS5, living TV and bedroom TV. I also set up a second router using Asus AImesh to provide wifi signal to one of the further corners of the house.

if you insist on wifi i personally love asus ai mesh. i’ve had nothing but great experiences with it so far. speeds are consistent through my entire house. eero on the other hand i personally have had very, very bad luck with. Devices that don’t roam properly across the nodes correctly, hit or miss connection drops during hand offs, poor speeds on satellite nodes (even with the pro models with tri band) and half of the good features being behind a stupid paywall. i personally wouldn’t ever touch eero again.

Asus aimesh, for years no reboot needed.