I'm unsure of whether this issue is Windows-specific but at the very least I suspect this is a change of behavior that would affect all platforms. In July 2020 I reported an issue I initially encountered in 2.27 that still seems to be present in 2.31.1.windows.1: https://github.com/git-for-windows/git/issues/2732 Since I haven't seen a response on the issue and it still occurs I decided to email this list as well. Package managers such as PNPM tend to create very long filenames due to symlinking. Having git not enumerate these ignored directories is essential to leveraging any sort of clean behavior (both for performance and for warning output) as we did before version 2.27. Our repo clean functions went from taking a few seconds to over 10 minutes due to this change in behavior. I've also had repeated problems sending you this email as your email server seems to reject any email with a URL in it (per the github link above.) Thanks, Jason
