Although it’s a useful feature to have to quickly see if the files are still syncing, available only online or offline, it’s not a feature for everyone, which is the reason why, starting with Windows 10 April 2018 Update (version 1803), File Explorer includes a new option to disable the OneDrive icon status.
How to disable OneDrive sync status icon in File Explorer
To disable the availability status icon from the navigation page of File Explorer, do the following:
Open File Explorer.
Click on the View tab.
Click on the Options button.
In “Folder Options,” click the View tab.
Under the “Navigation pane,” clear the Always show availability status option.
Once you’ve completed the steps, the navigation page will no longer show the OneDrive status icon on folders. However, you’ll continue to see availability status icons inside the OneDrive folder.
If the option isn’t available in the File Options page, it’s likely because you’re not running Windows 10 April 2018 Update or later. The next major release of Windows 10 is expected to become available on April 30, 2018.