are we not mixing up private networks with user (consumer) privacy? not an expert by any means, but isn't VPN used exactly for creating non-public networks? e.g

are we not mixing up private networks with user (consumer) privacy? not an expert by any means, but isn't VPN used exactly for creating non-public networks? e.g. when you log into your work network when WFH or connecting your branch office users to the head office servers and corporate applications...