What kind of car do you drive? It’s highly likely if your vehicle is low-slung that the pickup is not using high beams, just its regular lights, but the height difference means they shine straight in your eyes.
Similar to the effect when an oncoming car is cresting a small hill and the headlight angle of incidence changes to impact your eyes
It's a Nissan Leaf which is a little higher than most sedans because of the battery but still lower than an SUV. The problem is vehicle shapes become an arms race. I don't really want to drive an SUV. Vehicles keep getting more and more hostile to other drivers and pedestrians especially with the fist shaped front ends.
Similar to the effect when an oncoming car is cresting a small hill and the headlight angle of incidence changes to impact your eyes