OneDrive extremely slow

I actually came here specifically to mention how terrible OneDrive is. Interesting how one of the first discussions that shows up is someone else having issues with it. It is uploading files automatically without asking or telling me. Even worse, it is deleting the files locally without asking or telling me. Fidgeting with the settings(why is it even on by default? 'Set up later' during OS setup should not mean "turn it on now and fix it later") and disabling the auto-sync just made all of the files that were already auto-uploaded not even available at all locally. So now I have to go through and manually redownload all of my files, in sections even, because clicking "Download" on anything more than some unspecified file size doesn't even begin the download.

My old Windows 10 PC had OneDrive, but it was nowhere near as annoying as it is now on my new Windows 11 one.

Having it on should not auto-delete anything.

As you said, it is extremely slow itself to upload files. This is made even worse by the fact that it seems to hog all of the bandwidth while not even using it. OneDrive not uploading anything, download speeds of 30Mbps+. OneDrive uploading at 100Kbps(why?), download speeds drop to 200Kbps max, averaging much lower than that. Can't even use a browser or open Outlook because everything internet-related loads extremely slow while OneDrive is trying to do anything. This is unique to OneDrive because normally any other combination of internet activities has no effect on the overall speed.