I would argue that NixOS absolutely is the OS you get if your time is worthless, but not every distro is the same. I’d argue that if you need something that doesn’t have so many issues a stabler or easier to use distro (Debian, Ubuntu, Pop!_OS, Linux Mint, and even Fedora or openSUSE) is going to be a better option than trying to bend specifically NixOS to do what you want.
I personally use a mix of Pop, Debian, and Fedora, not because they’re particularly powerful, but because they tend to be more straightforward for what I want to do than NixOS, Gentoo, or Arch. I don’t mind tinkering, but for my main machines I don’t want to tinker much.
Edit: I should clarify that there are plenty of reasonable uses of Windows and I don’t fault anyone for using it especially if their familiarity is keeping them from understanding Linux as well as they want to. But I also would make the case that there are a lot of distros out there.
You’ll have substantially better results from modern integrated graphics (even on the low-end Intel UHD side). This is genuinely the card you get if you just need the extra outputs and don’t care about performance, or you have a CPU lacking integrated graphics and don’t care about performance.
In other words, there are use cases for it, but I absolutely agree that a gaming card this is not and it has a very specific niche.