what could possibly ever go wrong
Pulse-Doppler radar is, where the frequency dictated the resolution is, not really possible in a shared RF space.
2.4GHz has a wavelength of ~ 124mm
5GHz has a wavelength of ~60mm
60 GHz has a wavelength of ~ 5mm
So I'm guessing that 802.11bf would be a Monostatic radar in which the TX bandwidth is the critical factor:
2.4GHz typically has a bandwidth 20MHz, 40MHz or 80MHz which would correspond to ~15m, 7.5m or 4 meters
5GHz has a channel bandwidth 20MHz, 40MHz, 80MHz or 160 MHz which would correspond to ~15m, 7.5m, 4m or 2 meters
60 GHz has a channel bandwidth 2.16 GHz which would correspond to ~140 mm
And the reason I say Monostatic radar, is that most of the heavy duty math used in demodulation could then be used almost for free with ranging.
Time to go off an start reading some documents on 802.11bf, now that I've made my guess on how it probably works.