I've still got my main gear in storage but I have done some testing on a mini PC and a laptop. I'm actually surprised how well steam proton works on FreeBSD. Anyway, I am looking forward to setting up audio. If one bsd doesn't work I will move to another depending on the hardware. At this point I have a FreeBSD system, a GhostBSD system (which is a themed FreeBSD) and an OpenBSD system due to needing a 32bit efi to boot the 64bit os.
Anyway, I'm still plugging along on FreeBSD. I've tested a large amount of programs that all work very well.
Here is a quick list of things I've used so far that work as expected. Some of the audio programs I've only loaded audio for playback or recorded quick clips. I don't expect too many issues with audio though.
Obs studio
Lmms
Audacity
Ardour
Qtractor
Gimp
Inkscape
Ne
Ranger
Mplayer
Wayland
Gnome
Icewm
Blackbox
Mate
Cinnamon
Lxde
Twm
Openrgb (for rgb gaming mouse)
Ffmpeg video conversion
Webcams
Wifi (not all chipsets work)
A few games
World of Padman
Open arena
Urban Terror
Serious Sam 2017
Hitman absolution
Hitman bloodmoney
Hitman 2
Etc etc
Other than a lot of unsupported wifi chipsets I've not run in to too many issues. Although OpenBSD does have support for 32bit efi and sdio wifi chips. But OpenBSD doesn't support Bluetooth and FreeBSD does. It's a bit weird.
The bsd now podcast did mention that BSDCan (Canadian BSD conference) will be having sessions about cross sharing more driver support between BSD systems. So that's nice to know.
I'm pretty stoked about getting in to the audio. Hopefully can start soon.