qemu? Doesn't that totally kill all performance? Also, unless you have massice performance margins, running two OSes at the same time will have a serious impact on performance, especially if Windows is the OS that needs the performance.
no. rn i'm running debian host with mint guest and win10 guest. on host htop load average is below 2, the bigger issue is ram, at about 16gb used. as it happens, ram is much more easily expanded even on laptops than any other potential bottleneck causing hardware. i've never been short of performance with this setup, even when using old laptop with 12 gb ram and four cores
Stuff needs to be worth the effort. Most people run an OS to get specific tasks done, not the other way round. Sure, you can spend days getting something to work. Or you just don't.