Oh, that's interesting. I would never have even considered that option. Any suggestions for product?
you don't need wifi 6e if you are going to be using it as dedicated router for the quest 3. The only advantage that a Wifi 6e router has over a Wifi 5/6 router when using the Quest 3 is if you are in an area saturated with 5ghz networks. Are you living in a built up area or out the country? When you go to add network on your phone are there there loads networks listed or only a handful?
Another Question is, how is your PC connected to your Sky Homehub at the moment? Is it wireless or a wired connection?
As for tracking, the tracking on the Quest 3 is better than the Rift S. If you are happy enough with the tracking on the Rift S, you should have no issues with tracking on the Quest 3.