This was a genuine concern to me before my switch. I game a lot and this was a main thing keeping me back.
I eventually decided, well I'll at least dual boot and can just switch to Windows if I want to play a game there.
But that kinda turned out to be a pain in the ass. Things like Bluetooth devices would need to be switched each time (I know there are ways around this, don't @ me), and more.
So... I just stopped using Windows to avoid that annoyance. And it turns out I don't miss the games I could only play on Windows that much, because I haven't booted into Windows in months. I'm fact I'm not really sure why I still have the partition.
Tl:dr just do it.