Or the overtaking truck could just go faster to match the speed of the lane it's getting into.
It doesn't matter what you're driving, if you're getting into a flow that's going faster than you are you are either going to force it to slow down or cause a crash, depending on how much space is in front of whoever you choose to cut off.
I'll generally cut the trucks some slack because it's not like they can gain 10-15mph at the drop of a hat but when car drivers do it it's impolite and amounts to a big middle finger to everyone else.
In the US, speed limiters have been required on heavy-duty trucks since model years in the early 90s (1992 I think). They are not required to be set to a speed matching the prevailing highway speed limit, but the overwhelming majority of fleet has them.
It doesn't matter what you're driving, if you're getting into a flow that's going faster than you are you are either going to force it to slow down or cause a crash, depending on how much space is in front of whoever you choose to cut off.
I'll generally cut the trucks some slack because it's not like they can gain 10-15mph at the drop of a hat but when car drivers do it it's impolite and amounts to a big middle finger to everyone else.