I spent two weeks delivering for Uber Eats and made $4.40 per hour

In food delivery service, natural monopoly/oligopoly might exist and companies could eliminate competitors which adhere to minimum wage or treat their workers better. The eventual result could be unfairly high profits for these companies, not due to a better system or innovation but from shady practices.

In general I believe well-implemented negative income taxes work better than minimum wages, but given the weakening power of less skilled labor and political situations that limit redistribution of wealth/income, minimum wages are justified in certain cases.

I've always liked the simplicity of a linear tax with a rather large tax credit and paying out rather than collecting when income after tax credit is negative.

I'm not sure if such a system can be made sufficiently progressive.