This way, it feels like I'm on Linux the whole time with a Windows themed desktop, great support for games and no hardware issues. This isn't about ideological purity for me. If everything works, I'm happy.
Why? Because GPU driver compatibility is still so bad on Linux that I can't get any of the popular distros to work properly on my setup (laptop with hybrid Intel/nVidia GPU setup, thunderbolt dock, external display with different scaling than laptop display).
And yes, if I spend a weekend fiddling with Nouveau drivers I might get it to run somewhat decently, but really I don't want to spend that time on my work setup. Window + WSL works out of the box, so I'll use that.
I've got Nvidia too and Nouveau works only well enough to download the proprietary drivers
Mixing business and gaming on the same machine caused problems for me even when I was fully on Windows, so I've always kept separate machines for that.
In the end, I just found that I am more productive with Windows. On Linux, I really hated driver compatibility issues (happens quite often on laptops), core programs are not so stable (KDE window manager) and skype sucked on Linux.
Also, I could not game on Linux so that sucked even more. On Windows I have steam with 0 worries about registry and dll hacking with WINE.