As I said in the previous post, the first half of it just landed within the last month. iwlwifi[0] and dozens of linuxkpi commits[1] over the past couple of months by bz@. My frame.work laptop works generally well with -CURRENT (and presumably with stable/13, since iwlwifi's been mfc'd) with some wifi stability issues that have been reported.
And as i wrote, wireless is criminally underdeveloped on freebsd, not just a problem for laptops but firewalls/access-points too. 802.11n came out 12! years ago...and no i don't even talk about ac here.
[0] https://cgit.freebsd.org/src/log/sys/contrib/dev/iwlwifi [1] https://cgit.freebsd.org/src/log/sys/compat/linuxkpi