Why?
I’ve tried to Google this, but it’s such a general statement I can’t find anything about it.
Is it more mature in that regard? Sane/sensible/safe defaults for networking? More tools as part of the distribution for networking?
Did FreeBSD (or it’s predecessor/upstream/whatever) define the standards, so the implementation is more correct?
Or is it just that so many firewall applications run on top of FreeBSD (or a BSD flavour) eg opnSense, pfSense, openWRT (is openWRT actually BSD, idk)?
So, kinda a historical/momentum thing. With the benefits of wide spread specific use