Guest Login via Captive Portal using QR Codes or Guest Codes

I would like to know if anyone has experience implementing guest authentication using QR codes or guest access codes through the FortiGate captive portal at the interface level.

Currently, I am configuring a captive portal for guest WiFi access, and I would like to provide a more user-friendly authentication method for visitors. Ideally, I would like to implement one of the following options:

• Access through QR codes that redirect users directly to the captive portal login page.

• Guest access codes or vouchers that users can enter in the captive portal to gain temporary access