It probably wouldn’t change your resolution but the AMOC is not the Gulf Stream, it’s just a subsystem of it. So the AMOC could collapse but the Gulf Stream basically never will unless the earth stops spinning.

It seems like there could be a lot of ambiguity here. What if it substantially slows down but hasn't stopped? or the flow pattern changes such that it's still there but quite different from before?

@Ansel Good point - My understanding is that if it is indeed slowing down (that is also debated) it will reach a tipping point where it will "collapse" as in cease to exist as we know it, either by stopping or the flow pattern diverting significantly. My assumption is that such an event would cause obvious climate effects and headlines that would mean the question resolves to YES.