I don't think that matters. If a tool isn't as good as the leading closed source commercial offering there are still good reasons to use it - you might not get enough value to make it worth paying, using open source might be an ethical choice, the open version might still be good enough, and so on.
It's not like there aren't commercial design tools other than Figma either. People choose to use and pay for those tools instead of Figma. The idea that there's one 'industry standard' choice and everything else is wrong is obviously nonsense. Having an OSS option as well is only a good thing.
It's not like there aren't commercial design tools other than Figma either. People choose to use and pay for those tools instead of Figma. The idea that there's one 'industry standard' choice and everything else is wrong is obviously nonsense. Having an OSS option as well is only a good thing.