I took our MBA 2018 back after using for 10 mins. It was that bad.
In my 20 + years experience in the electronics industry - it does not appear to me to be an easy fix.
I’m thinking that it could be a vendor problem. Maybe they supplied low quality cams - and apple was unaware.
Or maybe the factory fitted the same 480p cam as the 12” mackbook by accident?
Or maybe there was a deadline and there was a part shortage on the 720HD cams - so someone made a decision to fit the poor UVC cam type?
To to swap out that cam - it could potentially destroy the screen trying to get to it.
If the screen is swapped - with lid and all - that is an expensive swap. The unit would have to be fully opened to unhook the cables. Probably talking a 1 to 2 hour job. Plus the laptop has to be re-tested...
To find another cam may take some engineering effort. Plus it would take a while for that to filter through to new production in China. As big as apple is, they may be able to pull it off sooner than a year.
Wish Apple would comment and let people know where they stand on this issue...
Maybe there is a scrambling behind the scenes to figure out this issue and will officially announce something once they have a handle on it?
Or maybe they knew all along...