Obviously if you need other Windows applications like Photoshop or Office this mentality doesn't work, but I've convinced people who want Linux and games to go this route. They just treat the Windows partition like an Xbox or Playstation.
And it's just entertainment.
I’m confused by the word “nowadays”. I had a friend with a dual-booting setup between Windows and Linux in the 90s.
30 years ago, the mantra in the tech world was "Businesses use Microsoft. People only use Apple for games."
No, back then we associated Macs with artists, little children via school funding, and the elderly. People that didn’t want to get their hands dirty, think about careful memory configurations, or bolting in new power supplies. They weren’t associated with technical people much less programmers, and certainly nobody into games cared about them at the time. Myst was the only game I remember on mac, and that was in 1993, and it was lame. Would you rather be running and gunning down 3D hallways shooting nazis or watching still photos thinking about a puzzle? I mean, it had its place but no comparison.
Partly through school these days but it used to be mostly due to gaming when I was growing up.
Making it harder to introduce Linux in a corporate setting. We're in it for the long con ;)