You will find the right side of the screen that depicts what's around you is nonsensical - sometimes it will show everything - a few cars in front a few behind and those either side - and 5 minutes later shows bugger all, the only thing I think is reliably depicted are traffic cones.
The screen used to also show you cars coming in the opposite direction too but that function was removed a while ago.
We are told by Tesla the car is seeing everything but removes what Tesla considers unnecessary graphics, no idea if that's for compute power saving or potential overload of information to the driver, either way, once you just treat the car like any other car you don't even look at stuff like that - you just add these things as another foible of the car.