The ones I’ve seen in the wild are pvcs and ccc/harvest, but there are others. I think they usually try to brand it as part of a larger end-to-end SDLC tool or change management, or it’s built to work with a specific proprietary system like Autodesk vault.

And Firefox, git, Dia, gimp, etc…

Proprietary OS’s like Windows and macOS lack package managers too that tools like chocolatey and homebrew provide.

Those both require subscriptions for access though instead of offering an ad based tier so that already excludes a majority of viewers from being able to move over from yt and those producers are unlikely to abandon their current audiences for a possibly bigger audience under a different corporation. I think that’s going to be necessary for a majority of viewers and producers to switch to another A/V distribution platform. If Netflix or MTV had an ad-only based tier and released apps for phones, Roku, browser, etc and allowed producer uploads then I suspect they could take a big chunk of Google’s yt viewership and profits.

When there is a viable alternative

They are cavemen pretending to be in the future where there are machines that can cook for you