Hornblower,
Thanks for the reply. Unfortunately this does not solve the issue as far as I can tell.
None of my folders are set to sync to OneDrive and I do not actually have it running in the background unless I am specifically uploading files, but it still gives me popups from time to time asking if I want to backup Office Files to OneDrive.
So far, I think the only way to stop this is to completely remove OneDrive from my system. I thought I heard that in 24H2 there was going to be a feature to stop the popups, but I can't find it.