The material conditions that precede full communism would mean that no job would need doing unless you want to do it. Automation, robots, etc would take care of all the menial labor. Human labor would be absolutely voluntary and recreational.

But I get we’re talking lower stage communism ie socialism. People are willing to do the jobs required by the world around them when treated with respect and dignity, without exploitation and corporate dictatorship. And if sincerely nobody wanted to do it full time, alternative models exist, like dividing basic janitorial work amongst office staff with a chore chart