I do admit the "reliance on swap" thing is speculation on my part :)
My experience is that I can still tell when the OS is unhappy when I demand more RAM than it can give. MacOS is still relatively responsive around this range, which I just attributed to super fast swapping. (I'd assume memory compression too, but I usually run into this trouble when working with large amounts of poorly-compressible data.)
In either case, I know it's frustrating when someone is confidently wrong but you can't properly correct them, so you have my apologies
My experience is that I can still tell when the OS is unhappy when I demand more RAM than it can give. MacOS is still relatively responsive around this range, which I just attributed to super fast swapping. (I'd assume memory compression too, but I usually run into this trouble when working with large amounts of poorly-compressible data.)
In either case, I know it's frustrating when someone is confidently wrong but you can't properly correct them, so you have my apologies