I only ride road for “pleasure” and get to stay off busy roads so don’t feel in danger – or hardly ever
But every day I drive along a stretch of A-road & see cyclists at risk. Makes me wince, esp in winter when it’s darkish at peak times.
Worht noting that the road’s not really wide enough for 2 cars & a bike, let along car/lorry/bike and this of course is the source of danger. It’s also semi-rural, floods quite a lot at the edges and has crappy ill-defined margins.
When the occasional considerate driver waits for a decent passing place to get round a bike, they tend to generate a queue of about 30 vehicles all travelling at bike pace. I can see why this might wind up drivers but there is no realistic alternative route if you have to cycle to work. I wouldn’t dare ride it.