No idea about other BSDs, but in case of FreeBSD that’s generally just Intel and AMD graphics drivers. All the rest is native. And this goes both ways - at on

No idea about other BSDs, but in case of FreeBSD that’s generally just Intel and AMD graphics drivers. All the rest is native. And this goes both ways - at one point Linux folks famously managed to violate the BSD license when porting some WiFi driver, iirc, which is notable, since it’s not that easy given the licenses nature :-)