Ensure you are logged into your account on the web portal.
Navigate to the User Menu and click Settings (Shown below)
If this is your first time creating a Login QR code, there will be a prompt for you to ensure you set a PIN first before generating a QR Code. If you need to set a PIN, enter it twice in the fields on the right and click "Reset PIN."
Once you have a PIN set, click "Generate QR code."
Depending on your organization's policies, you may now right-click on the QR code and save the image to your local machine.