Big Sur update

Does this not work???

1. On your Mac, choose Apple menu  > System Preferences, then click Users & Groups .
2. If the lock at the bottom left is locked , click it to unlock the preference pane.
3. Select Guest User in the list of users.
4. Select “Allow guests to log in to this computer.”
5. If you like, select “Limit Adult Websites” to prevent the guest from accessing adult websites.
6. To let guests use your shared folders from another computer on the network, select “Allow guest users to connect to shared folders.”