Dumb yet serious question : what problem is a dotfile manager even trying to solve?

Personally I have a git repo in my home directory and just commit dotfiles to it. The only drawback is that git always think there’s a git repo no matter where I am in my home, so I usually rename the .git folder to .git_hidden. And on the (rare) occasion that I want to update one of my dotfiles I just rename the .git_hidden directory back to .git.

It’s really just two “mv” commands, I can’t believe you need a tool for just that.

What am I missing out on?