My experience seems to be on the whole reasonable.
I don’t live in the smoke as you have guessed..most motorists give you space, and provided you are not riding in the gutter they give you the space you are entitled to.
The only incidents i’ve had tend to be from selfish mobile phone users.
Incidents i’ve witnessed at junctions seem to be related to the blind spots in cars.. i.e. your coming in at a 45 degree angle to the car and you dissappear into that pillar