For discussion purposes just "WiFi" isn't doing much. I doubt typical AP<->phone 802.11ac on 5GHz can achieve >1km let alone 802.11ax/be on 6Ghz carrier, even 802.11n can only reach a few hundred meters with line-of-sight, sunny day, and no interference

Long range WiFi is a "solved" problem with 802.11ah with sub-Ghz carrier and can reach more than a km depending on bandwidth requirements

All that assuming tx power is within regulation, no enterprise grade antenna, and all with commercially available parts