non essential worker
Somebody whose job role and place in an entity is pointless and irrelevant, illustrated during COVID-19 lockdown periods when a person was not required.
David is a non essential worker because we haven’t needed him during lockdown.
non worker
Someone who expects everyone else to provide financial support, always having a reason they cannot work. Completed capable of working they claim they are either too stressed, too skilled, or too much the victim to get or keep a job.
My cousin is such a non worker. He quit another job because they didn't pay him enough for his time and the Manager said something to him about his tardiness.