It comes from a ten year period of distro-hopping a dozen different Linux distros that ultimately all fell short of delivering an experience anywhere near as stable or reliable as Windows or Mac OS. The closest I got to that was Mint, which I ended up using from Mint 9 thru Mint 17. And then the drivers for my nVidia graphics card just...broke. I had my laptop set up as a dual boot, and until that driver mess, rarely ever booted Windows. After the driver busted, I found myself having less and less interest in spending ungodly hours trying to coax some other distro into cooperating (Ubuntu, Pentoo, Kali, Knoppix). Every distro would have some kind of conflict or missing libs or some other issue requiring hours of fixing config files or finding exactly the correct repo to install from so as not to break compatibility with something else. It just got exhausting, like having a second job just to maintain a functioning desktop that wasn't full of obsolete or deprecated software. Mind you, I gave up back in 2015. I did wonder if I should have given LM 18 a try when it came out about a year later, but by then, I had largely just moved on from PCs as an interest altogether. I just didn't have the budget to keep up with hardware, and my job as an over the road driver at a time lent itself to portable gaming and consoles. I couldn't justify spending another 2 grand on another laptop that would be obsolete in two or three years.

So yes, it is my own experience with FOSS software, and lots and lots of it, and all of the headaches that went along with it. I absolutely adored Mint when it worked. It's just too bad that that only lasted a couple years, at least for me.