What I was hoping to do was have a central OMNI broadcast the networks and then be able to have esp32s anywhere that could just connect to that 2.4 network.
No real P2P as devices could be at opposite ends to each other.
What I have noticed is there little things actually have quite juicy onboard antennas.
I have one 100 meters away and walls inbetween, connecting to the indoor AP 2.4G network and its online, not sure what the throughput is yet (literally just flashed it) but, could always whack an external antenna on via the UFL
The Bullet AC is selectable dual band not simultaneous. There is also the Ubiquiti AC Mesh which is very similar to the EAP225 Outdoor. The physics don't allow a wifi link between two omni antennas at 1 km, considering practical and legal power limits. 2.4 GHz CPE type equipment with an integral directional antenna is about all discontinued.