It depends on the open source project. Not all open source projects are community-driven or are controlled by benevolent dictators; there are some open source

It depends on the open source project. Not all open source projects are community-driven or are controlled by benevolent dictators; there are some open source projects that are developed by companies selling products and services using those projects (e.g., Red Hat, various database companies before they started switching to non-FOSS source-available licenses), and there are open source projects that are supported by academic institutions and public-sector laboratories. The open source world is not immune to economic pressures. Even the hobbyist donating code still needs to make a living. Thus it’s possible for some open source projects to still undergo “enshittification” if economic pressures influence the maintainers of these projects accordingly.