How do I change my Wi-Fi protocol on my router?

Could you please elaborate on the steps required to modify the Wi-Fi protocol settings on my router? I'm seeking guidance on navigating through the router's interface to select a different protocol, such as switching from WPA2 to WPA3 for enhanced security. Are there any prerequisites I should be aware of, like updating the router's firmware or ensuring compatibility with my devices? Also, is there a risk of losing my current Wi-Fi settings during the process, and if so, how can I back them up? I appreciate your assistance in navigating this technical task.