> WiFi is obsolete tech. Even 5Ghz WiFi often barely works, let alone 6GHz (which no Apple device supports)

Sorry, _what_? This is an absurdly ludicrous take. Wi-Fi is one of the most successful and ubiquitous wireless technologies of all time. 5GHz has been working fine for people (especially in locations where 2.4GHz is crowded) for I don't know how many years—at least over a decade, or even two if you count 802.11a. Most Apple devices from the last 2 years support 6GHz too.