Install Firewall PF on Macbook pro

Hello all,

I recently became the owner of a Macbook pro 16" 2023, and I want to install a PF firewall (known from FreeBSD and OpenBSD) because of working outside the home. To my surprise, I saw the configuration files for this on my computer, but the actual program is missing. So I would like to install and configure this program, but lack the knowledge to do this on a Macbook pro. I used to do it on a small PC, so I am familiar with this matter, but lack the knowledge of the hardware of the Mac. It is the intention that all WiFi traffic is filtered before it can be used. Maybe someone can help me with this. I look forward to a response. Mvg. Karel.