Well, that’s why I didn’t name Firefox as a particularly good example of open-source, just a reference for the manpower needed.

Is there a good example of open-source web browser? For example, what do you use as a browser?

More generally, is there anything that passes you "hard fork" test for another reason than the scale effect? Is there any sign that the frustrated community members are more talented if the maintainer is hired by a non-profit rather than a private company?

Nah, I would just like it, if companies wouldn’t tout their projects being open-source, when that’s basically just misleading many users.

There is a precise definition of what is open source. If users think it encompasses more, that's a problem of communication from part of the open source community.

just letting the “open-source” term die and finding a better word

Do you really think there is no advantage of a program being open source? Don't you think it is a good thing that the online community can check the source code, fork it to remove the bits they don't like, install a previous version if they don't like the new one? Would you prefer if there was no open source Chromium, no ungoogled-chromium, no soft forks of it, so that one would need to run Chrome if they need to use an app developped for Chrome?

Do you exclusively use software that is designed by communities rather than companies?