I think people might be able to support more than they think, but I'd also be sceptical that they could unrack 2x bodyweight without _some_ training.

Could they use a machine to load up to that point? Cushioned and loaded in a way that doesn't use traps/a barbell? Maybe.

I say this as someone who deals regularly with weights around that level, at a similar weight.

Having said all that, I do 100% agree that loading your back and getting the weight there are two different things!