Windows 11 and Windows 10 were recently updated with “Windows Backup”, which has now become a system app. While the feature initially appeared as “optional” or something that could be easily dismissed, Microsoft is slowly getting aggressive with its new OneDrive backup campaign on Windows 11.
Windows 11’s “Windows Backup” uses OneDrive to back up many of the things that are important to you. This may include your credentials, settings, pictures, documents, videos, files, themes, or even audio settings. Microsoft wants the Windows Backup app to become the ultimate backup tool, but there’s a catch.
Windows Backup does not support offline backups and requires a OneDrive plan. By default, OneDrive offers 5GB of free storage, which is why some users do not want to backup their PC. But is that going to stop Microsoft from pestering users? Probably not. In a new server-side update, Windows 11 has started nagging users to try the Backup tool.
There's etckeeper too.
Btw, etc is for system/default settings.