To save you time, I have taken it upon myself to watch all the dash camera vidoes on YouTube, and I can now summarize driving in various countries:
The USA: You own the lane in which you drive. If somebody wants to drive in the same lane, they had better wait until you have passed them by a mile; if not, honk at them, repeatedly and for a long time. Also, if somebody honks at you, the appropriate response is to get in front of them and randomly hitting the brakes. This is called "brake checking", and often spelt "break". Most accidents happen when people change lane without looking first, and channels habitually recommend driving your car into another car instead of leaving room or avoiding contact, for insurance reasons. Most overtaking is done on the right.
The UK: Most problems happen in roundabouts when people either don't manage to be in the correct lane, or they fail to enter the roundabout at the right time, or they fail to speed up quickly enough.
Australia: drivers turning off at exits too late; the comment is invariably: "What a dickhead!"
Russia: On two-lane snow covered roads head-on collisions during overtaking are popular. Otherwise most accidents are cars turning left on six lane wide streets lined with tall concrete buildings, into cars running red lights.
Germany: Most dash camera videoes are of cars driving through red lights or over lines they aren't supposed to. The camera operator will berate they driver not following the rules loudly; "Junge!". Every video of a cyclist invariably includes some minor offense and the dash camera driver yelling at the offender.