Yeah, VPNs basically trick the system into thinking you're somewhere else. When your school/work blocks websites, they usually do it by IP or DNS filtering. A VPN routes your traffic through a different server, so those blocked websites become accessible because the network can't see the real destination.
But heads up—some networks have deep packet inspection (DPI) and can detect VPN traffic. If they're strict, they might block the VPN itself.
As for hiding activity, a good VPN encrypts your data, so admins can't see what you're doing, just that you're using a VPN. If you're worried, try something like NordVPN or ProtonVPN—they’re solid for bypassing restrictions.
But heads up—some networks have deep packet inspection (DPI) and can detect VPN traffic. If they're strict, they might block the VPN itself.
As for hiding activity, a good VPN encrypts your data, so admins can't see what you're doing, just that you're using a VPN. If you're worried, try something like NordVPN or ProtonVPN—they’re solid for bypassing restrictions.