

At stop signs, or right turns at lights, most vehicles roll through slowly instead of coming to a complete stop, basically the exact same action a bike takes. At least where I live it’s perfectly legal for bikes to run stop signs, so long as it wouldn’t be anyone else’s right of way. But it’s not legal for cars to do it, yet they mostly do.
Edit: passing through a red on a bicycle or motorcycle is also legal in most places with proximity sensors so long as no one else has the right of way. Many lights have proximity sensors that fail to detect bikes, so they have to let it happen or you could be stuck at a light until a car comes.
Do you think motorcycles are required to just sit at a light all day long? Some lights these days are only triggered by large metal objects, motorcycles are often not detected. The light will never change if a car or truck doesn’t come.
https://legalclarity.org/when-can-motorcycles-legally-run-red-lights/
This article only lists some states, but I know it’s legal in Minnesota since 2002, so it’s definitely not an exhaustive list.