Microsoft is still forcing you to back up your files to the cloud, but recent changes have made it easier to restore your local files. Too bad those changes aren't documented.
You can drag and drop files into OneDrive by moving them from Windows File Explorer to the OneDrive folder. OneDrive is a free-to-use cloud storage platform, though it offers Microsoft 365 subscribers ...
To backup your files with OneDrive, you'll need to turn on the feature in the "Backup" tab of your OneDrive settings. OneDrive lets you automatically backup files from your PC's Desktop, Documents, ...