In earlier stages of Communism, they can receive more labor Vouchers as representative to the value they create, ie in comparison to Socially Necessary Labor Time. In higher stages, the effect of training is more diminished as production must be even higher to reach such a status in the first place.
Either way, you hint at thinking Capitalism is when people are paid wages, which is incredibly wrong.
Capitalism is a Mode of Production by which individual Capitalists buy and sell Capital, and pay Workers wages to use said Capital to create commodities. It is not the only form of economy where people can be paid, it’s a specific model that arose alongside the Industrial Revolution.
People get paid in Worker Co-operatives, yet those are Socialist entities. You don’t need a Capitalist to be paid to work.
Not trying to be rude, it’s just a huge misconception here.