Everything being re-labelled as d.docs.drive and not saving on OneDrive

I totally understand your pain; I dealt with a similar issue when OneDrive just stopped syncing my files. I found that checking the sync settings in the OneDrive app really helped, as it sometimes gets stuck pointing to the wrong folder. I also had to make sure my Office apps were set to save directly to OneDrive instead of my local drive. It was a bit of a hassle, but resetting those settings did the trick for me.