Graphical user interface for firewall?

I tried to run gufw (graphical interface for ufw) but it did not work. In Testing 20.04 - only for the most adventurous there is mentioned ufw. Is there an alternative GUI which can be used with Ubuntu Budgie 20.04?

what do you mean by “it did not work”?

Did it not launch/run? Have you tried running from a terminal - any errors or warnings reported?