Current generation "mesh" networks are kind of a scam. Until the wifi alliance (or whatever they call themselves) have a protocol that all of the wifi clients (your iphone for example) also follow, mesh will simply not work correctly. This is why I stick with rapid transition ubiquiti unifi and plan on sticking with this for the next 10 years. No matter how good your router is, the weak link is the client devices. Most clients, especially for 5ghz, function best with an access point in every single room with no boundaries.
In a true/perfect mesh network, you should be able to do wifi calling on your cellphone and never drop a call. Basically your phone would be simultaneously connected to more than one access point and would be able to transition from one to the other without dropping a beat. I am not sure what all the technical hurdles for that type of networking are but I suspect that the network would need some way to map itself and then attach clients to appropriate access points in the area simultaneously. Perhaps the mesh would actually triangulate the client's position in space also in order to provide beacon functionality.
I suspect this roadmap is why apple got out of the wireless router/access point business for right now. It makes perfect sense for every homepod (or similar device) to have a) airplay2 b)true wireless mesh and c)beacon capability. Imagine your amazon alexa echo dots with a mesh access point built in.
This would make your remote control apps and devices aware of which room you are in. wifi calling would be "perfect" with no dropped calls walking from room to room. When you walk into your master bedroom, your apple watch would immediately go to the controls for that particular room as opposed to an arbitrary "favorites" page like it does now.
Your iphone apple tv remote would automatically control your media room when you walk in as well.
Your homepod, etc would be able more straightforward to control the particular room you are in by voice. When you say "siri, turn on the lights" it will automatically know which lights and room you are talking about (the room you are in). The big plus is that this can all happen with VERY little setup since all the regional devices will have beacons, mesh, and self mapping features.
with the new 3d mapping features they are coming up with in Augmented reality stuff, you will be able to readily map out your actual house and make it even more straightforward for the beacons/mesh access points to self setup in the correct rooms/spaces.
I just foresee MUCH more consumer friendly wifi / home solutions coming down the pike. I still think that the traditional home automation era will come to a close (crestron etc) as all these developments converge. You just won't need much manual setup of automation in the future.
until the wifi alliance changes mesh networking and your wifi chips in your phones change along with it, you are still not in a truly "mesh" scenario. I suspect we will be there in the next 10 years.