IIRC there was an article on people becoming worse drivers during COVID because we drove less.

There is also the factor of traffic disappearing during Covid and I think having to face traffic again now enrages some people.

Also a bad mix of highly entitled people who think they are the main character, people who think that being an asshole is an identity, people who think the rest of traffic are just NPC's in a racing game and not kids and people in cars, and people on their phones.