Microsoft will sell it as a safety thing - your essential stuff is backed up to your Microsoft account, so in the event that your computer is compromised or damaged, you can wipe and start over with your important stuff restored from your Microsoft account.
Which is not a bad idea in itself, but the rest of the data harvesting and telemetry makes it yuck. I use pihole to block access to Microsoft telemetry servers.
Microsoft will sell it as a safety thing - your essential stuff is backed up to your Microsoft account, so in the event that your computer is compromised or damaged, you can wipe and start over with your important stuff restored from your Microsoft account.
Which is not a bad idea in itself, but the rest of the data harvesting and telemetry makes it yuck. I use pihole to block access to Microsoft telemetry servers.