Yeah VSS was the predecessor to TFS, and now TFS is called Azure DevOps... whatever the fuck that means, Microsoft needs to get it together with product naming. Anyway TFS sucks major rotten ass. I have my problems with git - namely user friendliness - but TortoiseGit has put all those troubles to rest.
Nothing like that can fix TFS.
Welcome to my world... our new lead architect has mandated that we move everything from TFS to GitLab before the end of the year. I hope it comes true.