@Brisco_n_Chief People are spoilt by big corporations that steal personal data and show that they give completely free product. They have an army of developers working behind the scenes with the Ad revenue.
What FOSS promises is mostly transparency. There could be chinks in the armor, but over time, it would be as good as other alternatives. At some point FOSS projects too have to think about a business plan if they want to keep the ball rolling.