OneDrive doesn't support dotfiles and thus can't sync Git repos. This does not appear to still be the case based on testing just now (creating a folder named "

OneDrive doesn't support dotfiles and thus can't sync Git repos. This does not appear to still be the case based on testing just now (creating a folder named ".foldername", containing a file named ".testfile" then verifying that they've synced up to OneDrive). Several years ago it didn't support syncing folders with a . in the name, but that was resolved 3 years ago. With Microsoft's relatively new focus on Git, I can't imagine that problems with repositories stored in OneDrive folders would remain unfixed. I will note that there are names that Windows Explorer won't let you create - notably, names beginning with a ".". That's an Explorer issue, not a OneDrive or filesystem issue - you can create such files and folders programmatically or from a command prompt.