I say keep Mozilla Firefox as the base browser, I think it fits better to BSD than Chrome.
I will install LibreWolf anyway but I would need Firefox as a base browser for stuff that doesn't work on privacy browsers, e.g. Full HD streaming of DRM protected media.
As GhostBSD is mostly oriented towards ex-Windows users that would make sense as Windows also has Edge as the base browser which is always good to have as a fallback.
Also then you'd already have most of the necessary packages required for GNU IceCat, LibreWolf, Pale Moon, SeaMonkey, Tor Bowser, Waterfox, Zen Browser, right?