OneDrive cloud storage

How Finder works with your OneDrive (Microsoft) account: When your Mac (MacBook or iMac) is signed into OneDrive with your Microsoft account, files stored on your OneDrive servers (in Data Centres) are synced to the computer’s hard disk. When connected to the internet and in OneDrive in Finder, every new file or folder that you add is automatically uploaded to the remote OneDrive server. This way your files (letters, photos etc.) are always backed up and can be easily added to a new Mac. Also you can access your folders and files from any browser (Chrome or Safari) when you sign into OneDrive at onedrive.com

Set up to sync files with OneDrive on MacOS: for up to date instructions type ‘sync files with onedrive on macos’ into Google Search and follow the steps

See OneDrive in a browser: – See files on the Mac in Finder are synced and stored remotely in www.onedrive.com