I had flashes back to Planes, Trains and Automobiles; here, but in a good way I think.
The director is one of the Farrelly brothers, so this might be characterised as a super-woke take on Dumb and Dumber, along the lines of Dumb and Prodigiouser (...although tragically pretentious).
The brother of the passenger has apparently observed that the driver wasn't his friend, but his employee. That remark made me think of some of my mother's 'employees'.
The fact that Dr Shirley was estranged from his brother was duly emphasised in the movie.