Move to

This is a fairly new capability that has been a great help to many users and is only available in the Modern Experience. This capability allows you to move files and/or folders from place to place. Once you have chosen the file(s) and/or folder(s) you want to move, click on the Move To button in the action bar. A side panel will open; here, you can choose where you want to move your file(s) and/or folder(s) to:

You can move to another folder in the library you are in, other places in SharePoint, or even to your OneDrive for Business.

This is a move, not a copy. After the operation is completed, the file(s) and/or folder(s) will no longer exist in the original place.
You must have access permission of at least Contribute level to complete this operation. In order to see a list of available SharePoint sites, you must be following that site. If you have access to the site...