I think most of these aircraft are over 400 feet or (200 feet if you are in that grid, etc). Of course, there are those low flying aircraft on occasion but personally, I used to underestimate how low they were flying until I got use to them being around. A helicopter here or there is the exception but you can usually hear those coming if not ADS-B. I try not to worry any longer because I have VLOS and I try to do my best to avoid even being in the area (don't want to be reported as a "near miss") so I always have the ability to quickly descend to 50 feet where no manned aircraft could possibly fly. So much fear goes away when you fly the smaller Avatar/Mini rather than a Mavic/Evo.
DJI FPV has the speed and maneuverability, sometimes I feel like I can easily escape and evade.