You can view/edit Sync settings via OneDrive：
1.Click the blue OneDrive cloud icon in the Windows taskbar notification area.
2.Click Help & Settings >> click Settings
3.On the Microsoft OneDrive dialog, click Settings tab >> Here you can edit OneDrive sync settings
4.On the Microsoft OneDrive dialog, click Account tab >> select the Choose folders link to select the folders that you're syncing
You could refer to this article Sync SharePoint files with the OneDrive sync client (Groove.exe).
In generally, Sync SharePoint files with the OneDrive sync client. The OneDrive sync app uses Windows Push Notification Services (WNS) to sync files in real time.
You could refer to the following steps to check Sync settings:
1.Go to the Settings page of the SharePoint admin center page.
2.Select classic settings page link
3.On the Classic SharePoint admin center page, you will see the below Sync options. If you don't see the "Sync Client for SharePoint" setting on the Settings page, your organization is already set up to use the OneDrive sync app.
4.Then, you could go to the Sync page of the OneDrive admin center page. On the Sync page, you could use the below settings to control syncing of files in OneDrive and SharePoint.
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