Don't worry, by the time we get cheap mass produced Wi-Fi 7 4x4 MIMO routers, we'll have Wi-Fi 9 ready to be drafted.
> Wi-Fi 7 4x4 MIMO routers
Are there any such routers? And even if there are, are there any clients? The last 4x4 MIMO Wi-Fi client I can remember was the Asus PCE-AC88, a Wi-Fi 5 NIC from 2016.
I'm still waiting for 6 GHz APs to be the same price as 5 GHz. Can't find a basic AP under €100 yet.