This is true. If you left it in the same environment it would eventually return to equilibrium and the net result would be the same. the key is that the plastic has a limited take up rate of atmospheric moisture. so if you dry it for a few hours, the water migrates out slowly, but then takes quite some time to migrate back in.
generally people either print from a dryer box or dry filaments immediately before printing.
Oracle doing Oracle things.
Never forget what their name’s acronym really stands for…