There is a metal frame "top plate" if you can call it that but I think of a top plate as being the doubled 2x that is load bearing.
The subsequent trades will cut that metal frame away in a heart beat if it gets in their way, depending on the metal over the stud bays on either side to hold the studs. They might leave an inch or two next to the studs in the bay they are working in to hold the doubled 1x2 they strap the wires to.
Of course that is only if they are being polite. We have already had to get the metal framer back to fix the mess the plumbers and HVAC guys made of his walls and ceiling on the 2d floor where the ceiling is framed down from the concrete deck above. The fire cap on the 3d floor is fastened to the roof trusses so the rough wiring (HVAC, plumbing stacks, sprinklers etc) was in there before the walls were framed. In fact some of the electrical is going to have to be pulled up and back down to get it inside the wall cavities because the rockers just guessed where it was supposed to come down, poked a hole and pushed it through as they were hanging the rock. For some reason nobody seemed to look at the chalk marks on the floor.