The VM hubs (or any model) have mediocre wifi. If you have an easy wifi environment and modest use requirements they're adequate, but anything more demanding and it is worth investing in your own mesh system or router. A standalone router is better if you want to fiddle with advanced settings, a mesh is better for coverage across a larger area.
A Wifi 6 mesh or router is overkill for a 200 Mbps connection - you wouldn't see the benefits unless on at least a 600 Mbps connection, and possibly not until you were on a 1 Gbps connection. Buy all means buy an Asus router (almost all are excellent pieces of kit), if you want a mesh system appropriate for most users on 100-500 then a decent entry level mesh can be good.
If buying an Asus router, make sure that model supports the company's AiMesh technology. Then, if needs change, or you find you do need better coverage you can add another Asus AiMesh device to create a very high capability mesh network, although would be much more expensive than the entry level mesh.
But don't buy anything yet. Wait until the VM connection is installed and working (delays are distinctly possible), see how you get on with the supplied hub. Many people manage. VM can also supply "pods" to add quasi-mesh capability to the hub, but availability is so patchy I'd not even consider them myself.
