We will never know the whole truth as that specific culture typically bend the facts and there are little to no proofs of the claims. During soviet era the narrative was that Russian scientists (soviet elites always preferred Russia over other republics) are behind most of human scientific advantages and others simply steal from them.
I find MacOS terrible (any version) and wish my employer would not force Mac upon me. I hope one day we will be able to use Linux on Mac hardware (in enterprise setting).