I have to agree that in the second vid, the cyclist could have slowed. Fairly narrow road double parked, and the car driver did seem to be driving quite cautiously.
I don’t think the car driver was right to toot, but equally the cyclist could have done more to make the situation less inflammatory.
In an ideal world, perhaps the driver shouldn’t have pulled out. But given the double parking there, it is not that surprising that he couldn’t see everything and he did appear to be proceeding cautiously until the cyclist whizzed up to him.
Near where my sister lives there is parking like that & you often cannot see 100% what is coming when pulling out. So I proceed slowly & with caution, windows down so I can hear approaching road users & with a small amount of assumption that other road users will be driving equally carefully given the situation.