Most have pointed out that the OneDrive exclusion makes sense due to its complexity. But I see no one here defending the undocumented .git exclusion. That’s pretty egregious - if I’m backing up that directory it’s always 100% intentional and it definitely feels like a sacrifice to the product functionality for stability and performance. Not documenting it just twists the knife.

If you want to access your file, it gets downloaded. If Backblaze wants to check if your file has been changed, it doesn’t need to have the file downloaded - that’s what modification time is for. And file size.