[dji4321234]

Walksnail is not 802.11 based. If anything it is loosely 802.16 based. Likewise DJI OcuSync is more like LTE than anything else.

802.11 is not a good fit for FPV video and trying to use it has held non-proprietary-Chinese video systems back quite a lot.

[Evidlo]

You mean like OpenHD? What other options do they have while still being able to use COTS hardware?