"Also what do you have to say to the open-source projects that take a "dual licensing" approach, like how Google profits from creating their own proprietary bro

"Also what do you have to say to the open-source projects that take a "dual licensing" approach, like how Google profits from creating their own proprietary browser Chrome that has more features than the open-source Chromium?" Critically, Google doesn't sell or charge for Chrome access. Their monetization model is making software free (as in beer) in exchange for advertising. Again, that funky word free. Regarding imitating that model, you and me are not google, and will more likely fail than not if we were to pursue that model.