In addition to the recycle bin on your computer, OneDrive has a two-stage recycle bin. The first-stage recycle bin is where you can find files which have been deleted from OneDrive. The second-stage recycle bin is where files go when they’ve been deleted from the first stage. You have 90 days to restore deleted files or folders from the second stage recycle bin before they’re gone forever.
You can access just the first-stage recycle bin from within the OneDrive mobile app, or both of the stages from the OneDrive Online website.