Ok, I have had a little trip down the rabbit hole.....
BSD is a Unix-like operating system that is an alternative to Linux. I first encountered it about 3 years ago and it was awful to handle. Pretty much like Linux was 10 years ago.
However, over the years it has forked a few times and there is a variant of BSD calld PC-BSD. I suppose the best way to conceptualize PC-BSD is to see it as the "Ubuntu" of the BSD world. It is very user/newbie friendly. It comes with KDE as the out of the box desktop. However, it has something called an "App-Cafe2, which is similr in function to the software boutique here on UM. In there, you can find a very large array of open source software comparable to the kinds of tings you can find in Linux. More to the point, the Mate desktop is in there and is a piece of cake to install. Once installed, you can log out and back in on the mate desktop and it all begins to feel very familiar very quickly.
Most important of all SAMBA WORKS!
It's fast as lightening and just works, no problems, no hassles, no lag, no cpu going batshit on you, It just works.
I should say, I was very nearly disappointed for the first five minutes where it would not work. But, that was before I realized you had to include Samba as an allowed process in the on-board firewall. But having once done that, it worked perfectly.
I have done a video of it, below with samba working. "stephen-pc" is my windows laptop
Also, here is a video review of PC-BSD by someone whose reviews, though sometimes rambling, I respect.
I don;t know how stable this distro is when it is pushed a bit. But, I might install it as a second OS on my main rig and try it out for a few days.