The master cylinder if it’s in proper working order will not trap air it will bleed fine on the truck
The factory did not have to bench bleed before installing
There are two holes in the master to the reservoir so that airlock cannot happen
One hole is very small less than 1/16 it’s just a bit larger than a needle
With that second hole clear you won’t lock air
The designers would not have made a product that couldn’t be installed dry and bled in place
Bench bleeding is an urban myth that can damage the master if you over travel it a fraction too much
I’ve installed these dry (lubricated) on my truck and they bleed just fine by hand with two people doing it the old fashion hard way.

Over traveling the master piston too deep will damage the rubber cup and it will be wet on the piston plunger end forever and need periodic fluid cap up
Really over-travel it and you could damage the residual pressure check valve in addition to damaging the cup
-s