Mesh Network with VHT160/80 Support, Tri Band

There are not many wireless clients able to use 2x2 VHT80+80 to the full extent e.g. notebook class devices with Intel AX200/AX201 adapters allowing 1733/1733 Mb/s link rates on standard 802.11ac QAM256 - everything on the Netgear original 1.0.5.28 firmware btw. No idea why the PS5 should not be able to handle this - any 802.11ac 1x1 or 2x2 client operating on 20, 40, or 80 MHz I've ever tried on the R9000 with this config can operate on the R9000 VHT80+80 config making 96...867 Mb/s PHY link rate. The only downside is that it can't get an advantage out of 3x3 or 4x4 clients - because it is operating as a 2x2 radio in VHT80+80 (or VHT160) mode. Technically, there should be nothing stopping to connect "any" wireless client - if it does, it's a problem with the WiFi adpater firmware loaded by the host, e.g. the PS5 OS.

For your Note 20 Ultra, I don't think you don't need this, it's a VHT80 system, just like the slightly "smaller" -> Galaxy S20, S20+, and S20 Ultra support Wi-Fi 802.11 a/b/g/n/ac/ax (2.4/5GHz), VHT80 MU-MIMO, and 1024QAM wireless networking. And then it's unlikely more than a 2x2 system - the power usage on a battery operated mobile device would be tremendous.

Ref. your Mesh ideas: There is not much information beyond of hypothetical hype numbers on the PS5. The official don't-do-this-at-home disassembly video does show four antenna cables, so is most likely a 4x4 system. Leaving WiFi 6 40 MHz bandwith alone (this is for 2.4 GHz), it could be an WiFi 6 80 MHz (max 2401 Mb/s link rate) or a WiFi 6 80+80 MHz system (max link rate some 4803 Mb/s).  

There are not many Mesh systems offering more than one WiFi 6 HT80+80Mhz 4x4 fronthaul (again 4803. Mb/s max linkrate), the other is typically reserved for the wireless backhaul in the AX11000 class. WiFi 6 APs with more complex and very expensive 8x8 config are for venues where you need to cover a large amount of concurrent wireless clients. In fact, this is what WiFi 6 is made for - concurrently supporing lots of mobile devices. I'm convinced the Note 20 Ultra will perfectly perform on any WiFi 6 Mesh system today.