I run Arch Linux for ARM on my Pis (headless via WiFi and ssh). What benefit might I get from using FreeBSD? I'm genuinely curious as I'm not very familiar with

I run Arch Linux for ARM on my Pis (headless via WiFi and ssh). What benefit might I get from using FreeBSD? I'm genuinely curious as I'm not very familiar with BSD/Unix (although I am comfortable with Linux)