With regards to right on red. It (legally at least) requires that you must first stop at the light. So if you are turning right the idea is that you are supposed to first check for active traffic and treat it as if it is a stop sign. If someone ahead of you is waiting to turn right and then goes. Then you are supposed to pull up and then stop again before turning. Though in practice a lot of people will at best treat it more like a yield sign and just roll through without stopping. In super low traffic times or places where traffic is a non-issue (like a rural road where as you pull up to the light you can clearly see open roads without anyone) then this isn’t really an issue aside from learning bad habits. Though heavy traffic places are much more of an issue.