I was going to say git butler, which wraps git, but actually looks like that’s gone open source

There were many.

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.

There’s perforce

git was created because a proprietary VCS was being a dick