https://www.jetbrains.com/lp/devecosystem-2023/development/
Stay ahead with insights into the latest technologies and innovations shaping the future of development.
Source: JetBrains' "The State of Developer Ecosystem in 2023" survey
From my experience, just getting Unity to run on Linux has a plethora of issues. When I tried running our project we've been developing on Windows for the past few years, I couldn't even compile it. Apparently, Unity on Linux doesn't support some kind of media file formats we use for cutscenes. While I was trying to resolve it, Unity crashed few times.
And then there's the hug problem with "works on my machines". We're targeting Windows, Windows is still major market share for gaming, and me being the lead programmer, I can't afford not being able to build and test a build on the OS we're targeting.
Even if the differences between build targets are minor, there's still a posibility that something will just work differently on Linux than in does on Windows. And then you have the whole DirectX issue - IIRC, you can't use DirectX on Linux, so we would have to develop the game for Vulkan or something else, which adds another problems to deal with for other programmers in our team, who don't use Linux.
And then you have consoles. Do the SDKs for Sony, Switch or XDK even support running on Linux?
You said: (Linux) "unusable for any kind of gamedev...".
That's nonsense.
You raise valid points, but they do not support your conclusion that: (Linux) "unusable for ANY kind of gamedev...".
You know that, though. You were hyperbolic, I know that, too.
By the way, you should try Godot. You'll be surprised.
Oh, you are right, now I got your point. Sorry for that, I honestly didn't realize that I was making such a hyperbole.
I definitely plan to switch to Godot once I'm finally done with the school-project turned indie, that we're struggling with for the past 5 years and it's mostly holding on sunken cost fallacy. Unfortunately, since at work we mostly work on ports for other studios, I doubt I'll ever get to work on Godot there. But maybe at least the Unreal experience is better on Linux, never really checked that out.