With your Creative Cloud Desktop App. Click on Assets > Files > View on Web.
Then use the Actions drop-down to Create a Folder and upload files from your computer.
Your files are currently being sync to your hard drive location.
the setting are under preferences ,creative cloud, files. sync on , sync off
You can turn off sync or sync to a secondary hard drive like a USB hard drive.
With file syncing off you can upload (and download) files using the CC Assets website at https://assets.adobe.com. The CC Assets does support versioning and also has comments which you can use to help with tracking the updates if wished.
Please let me know if the above information helps.