If you value privacy, get yourself a VPN. A VPN encrypts your internet usage, enhancing your privacy online. It's more in-depth than Incognito Mode.
Wi-Fi printers use a Wi-Fi signal to connect a printer to your other devices. It's similar to wireless connections, such as Bluetooth and NFC, but simpler.
No more are the only options printing from a cable or a shared WiFi connection that often drops. In 2023, there are ways to connect to wireless printers.