He may be referring to the fact that it could be pronounced Auschwitz. I must admit, my immediate thought on reading the name was "why would someone name their app after a concentration camp?"
Most games don't have the time budget for that. Visuals take precedence, and it's not easy to get to 60fps as it is, especially if you're doing a lot of other processing.
And stealth games especially will probably rely a lot on shadows and other visual things, which make rendering more expensive.
I realise for casual users Windows is always going to be the OS of choice if for no other reason than it comes pre-installed and most people don't know how to reinstall an operating system.
However, Windows may be in trouble with more tech-literate people who do know how to change it. I can only speak for myself, but I've been a Windows user since 95. All but one of my programming jobs over the last 20 years have also been working on Windows. But I really dislike the direction Microsoft are taking and I find Windows to be terribly slow these days, with each version seemingly worse than the previous one. So I decided to look elsewhere.
A couple of months ago I bought a new laptop with the express intention of running Linux on it and giving it a good college try (I didn't want to mess around with dual-booting and I still need Windows on my main PC for work... for now). I know very little about Linux, but I've decided I'm not going to use Windows past 10 so it's time to find something else.
I went with Debian running dwm (Debian because I value stability over everything else, and dwm because I like the suckless philosophy) and it's honestly surprised me how good it's been. It's SO snappy. Everything is instant. It's really been a breath of fresh air.
I was especially dreading programming since I've solely used Visual Studio since Visual C++ 4.0 and don't really know anything else. Anyway, I went all-in and started learning Vim, GDB, and Make, and boy do I feel like I've been missing out. I'm really enjoying programming again, which for me has just become a job over the years.
Anyway, my point is, if tech-literate people are willing to give Linux a try, I wonder how many of them would be as surprised as I was and may make the switch permanently. With Windows getting worse, and Linux getting better, maybe more than ever.