As a bicyclist for over 30 years in the USA, I agree that bicycles (& motorcycles) are mostly considered as toys in the USA, most motorists feel that they don't belong on public roads.

I've worked as a bicycle messenger in Seattle & SF, CA, have had my fair share of close calls, door prizes; I'm used to commuting on my bicycle in NYC metro since 2013.
Filtering through between car mirrors in traffic is no particular concerning, but at night when visibility is low is when I become more careful.

Generally, I prefer a small folding bike for riding in the city traffic; smaller bike = smaller target to get hit, also lower speed (below 20 mph).
With the cargo ebike, motorists tend to give me more room to maneuver in traffic, important thing is to make yourself seen in traffic;
by being visible with lights & color you wear, or by the way you ride.

Just make sure you always have an way out to avoid impact, even if it means to jump the curb or ride at the opposite side of the road. It's kept me alive & accident free for decades.