As someone who has driven before, during, and after I think it's silly to think Covid didn't change how people drive. It's a night and day difference from 2019 to 2023 (first year of "back to normal") that cannot be explained by a gradual shift of people becoming more immersed in technology.
The attitudes in society towards law and order and what is acceptable day to day have massively shifted. Enforcement (at least where I am from) seems to be nonexistent too - and I think COVID laid that fact bare. People realized no one is actually watching or caring about what they do. Why not drive 55mph on the shoulder to get around that traffic jam if you know there are zero social or legal ramifications?