Git actually does have a separate disk format that's way more database-like, but it's only used for older data that doesn't need to be shuffled around as often.

Git actually does have a separate disk format that's way more database-like, but it's only used for older data that doesn't need to be shuffled around as often. Git was written assuming the filesystem is decently fast at metadata mutation, which is a good assumption on Linux and less so on Windows.