As someone who has tried to install Windows from Linux, and Linux from Windows… The meme is accurate. Even getting the official Windows ISO on a USB from Linux or MacOS is a multi-hour journey. Want to only install Windows on part of your hard drive? There goes another 15 minutes. Maybe 30 minutes because it wiped your GRUB partition. Honestly, try to do anything but the default options in the Windows install and you’ll lose 2 hours.
Installing Linux? I’ve installed Arch Linux in under 10 minutes. Manjaro is literally flash ISO to USB using any program (Windows, Linux or Mac) and watch an installer spin for 20 minutes. Windows? You’ll be spending 20 minutes on your first “update”.