I am currently running the Nightly Builds on my MacBook 4,1 which has a BroadCom BCM4321 wireless adapter but no driver is assigned to it.
According to this site
FreeBSD has had support for this and other models of BroadCom adapters since FreeBSD 12.
Here are further details on the BroadCom driver improvements that the developer has on his site.
Does this mean that Haiku can have this support as well?