I'd argue that LibreOffice, Inkscape, 7zip, Firefox, FileZilla, OBS, bitwarden are also well known, well used and compelling. Hell, OBS is arguably better than

I'd argue that LibreOffice, Inkscape, 7zip, Firefox, FileZilla, OBS, bitwarden are also well known, well used and compelling. Hell, OBS is arguably better than anything out there. There's also Blender. I think your bias is too strong. It's not so much controversial as misguided. People do things to meet their own needs and pain points and then products evolve. Having paid people behind products would make you think a product will be better but it's not necessarily the case. Also, different products might be better at different things (Firefox, despite some backsteps, is still more customizable than the closed source alternatives).