Can you not achieve the log history on a subtree with `git log my/subfolder/`? Tools like TortoiseGit let you right click on a folder and view the log of changes to it.
Yes it can, but the point is that in a git repo you store the entire history locally, so whenever you clone a repo, you clone its history on at least one branch.
So when you have a repo that's hundreds of GB in size, the entire history can be massive.
So when you have a repo that's hundreds of GB in size, the entire history can be massive.