What are things you need an OS to do and what software is required for that? is it ported to BSD natively? (If you care to share)
I'll start
For me i need an OS to do the following things
Video editing and re encoding (i use kdenlive and handbrake for these)
Capture device display and audio out into my headphones (OBS does this perfectly)
Take my xbox 360 rips that i use ftp to copy over and convert them into a specific format (i use badupdatehdd to put my xbox 360 in a mod state then i insert the game disc into the xbox 360 then use filezilla to ftp the contents of the game disc over to my pc then use extract-xiso to make it into an iso that i then use iso2god in wine to convert into a organized bootable format on the xbox 360 this allows me to control the games file size)
Web browsing (librewolf is my preferred but when ladybird is public released i will be moving to that depending on how it handles extensions)
I think that's about it for me