Road users no matter what the vehicle they are operating are obliged to use their vehicle with due courtesy, care, and consideration for road users.
Most do.
Unfortunately, the proliferation of dashcams, gopros, garmins and other video recording equipment has led to the development of a particular breed of ignorant cunts who believe that "content generation" is more important than their obligations to show the requisite care, courtesy, and consideration to their peers.
These particular ignorant cunts can be found behind the wheels of cars, or astride bicycles, or on buses, tractors, trucks, vans, etc. etc......
They are best avoided, and if encountered, just let them off and whatever you do, do not engage with them. Life is too short.