I've been stuck on this for so long, I forgot to update this thread that I finally found a solution.
The problem was I had some files that needed to be confirmed by an admin on my computer. I found out since I have multiple drives til ensure different things are backed up. I tried to backup my files on a OneDrive and it requested admin status from me, which iCloud simply doesn't. OneDrive had a hard time with those files as well, so it isn't just a way for me to say OneDrive>iCloud. I excluded the files that needed an admin to backup and everything is running smoothly now.
A few tips I found out along the way:
- Just because the drive seems stuck, doesn't mean it is stuck. Sometimes iCloud will be working in the background not using a lot of the computer's power. It took me 8-12 hours to go through it all and I did so multiple times because of the aforementioned, because I didn't know what the problem was (so I thought iCloud just got stuck, and it was a problem of the software). If you can, let your computer be open overnight especially if you have a lot of GB laying around
- Force closing iCloud because you think it is stuck may lead to a disaster - for me it uploaded all my folders which were empty without any order, so if you can, try not to force close iCloud with Task Manager (it was a mess to clean up)
- If you hold SHIFT, mark all the folders you want to backup, press RIGHT CLICK, and click on PROPERTIES, it'll show you how many files are actually present. If your iCloud finds too many files (for me it found 130.000+ while there were actually only around 90.000), there might be an issue (which might be the one I was having with the authorized by admin files).
The specific files that were the issue was me trying to mod the game Minecraft. A setup where you use InteliJ, gradle and some other stuff. These things combined prompted the ask for permission whenever the files needed to be moved around
Hope this helped, even if it was just a fellow Minecraft modder amongst the crowd of iCloud Drive users
