you’re right, in fact there are some open source projects that simply release the source code for each release of the program and develop in private, or simply not accept contributions while having their code repository and development process publicly available. (for example, sqlite)
however, there’s a lot more open source projects that are “made by the community” by accepting contributions from people outside the development team. the main example would ofc be the linux kernel. the changes proposed don’t get immediately included, they’re reviewed and gets merged later on.
you’re right, in fact there are some open source projects that simply release the source code for each release of the program and develop in private, or simply not accept contributions while having their code repository and development process publicly available. (for example, sqlite)
however, there’s a lot more open source projects that are “made by the community” by accepting contributions from people outside the development team. the main example would ofc be the linux kernel. the changes proposed don’t get immediately included, they’re reviewed and gets merged later on.
i recommend reading this page for more details. https://opensource.stackexchange.com/questions/1285/can-anyone-contribute-to-an-open-source-project