Mountain Duck is an app that can present OneDrive and Sharepoint drives as Windows drive letters.

I found this discussion from a few years ago: http://www.ztw3.com/forum/forum_entry.php?id=123067

We're using the OneDrive app to make users OneDrive available to them in File Explorer. A lot of users have hit the Sync button in Sharepoint to also make some of their Sharepoint team folders available in File Explorer via the OneDrive app.

This is working ok except where they have a lot of files, usually in large Sharepoint drives. If they try to sync too many files, their computer spends all its time syncing, even if there are very few files being changed.

I'm wondering if using Mountain Duck instead of the OneDrive app would work better. Is anyone here using it, in particular with hundreds of thousands of files?