I run a machine with lots of RAM and a hefty CPU and a monster GPU and an SSD for my Linux install and...a pair of HDD's with ZFS managing them as a mirror.
Wat. [1]
I also have Windows on a separate drive...that is also an HDD.
Double wat.
My Linux is snappy, but I also run the most minimal of things: I run the Awesome Window Manager with no animations. I run OpenRC with minimal services. I run most of my stuff in the terminal, and I'm getting upset at how slow Neovim is getting.
But my own stuff, I run off of ZFS on hard drives, and I'll do it in VM's with constrained resources.
Why?
While my own desktop has been optimized, I want my software to be snappy everywhere, even on lesser machines, even on phones. Even on Windows with an HDD.
This is my promise: my software will be far faster than what companies produce.
Because speed will be my killer feature. [2]
[1]: https://www.destroyallsoftware.com/talks/wat
[2]: https://bdickason.com/posts/speed-is-the-killer-feature/