Yes, but it's source control shifted to git years ago (I think you can still use TFS, but it's strongly legacy ) and git is mich better than TFS ever was.
True on both counts. (They’re never going to be able to kill TFVC entirely, but it’s disabled for new projects by default, and they’re going to take away the switch to reenable it.)
SourceSafe did get abandoned... because your source wasn't actually safe in it.
Its replacement, Team Foundation Server got rebranded as Azure DevOps; but the product's still around, 19 years later.