Buy a second SSD, install linux and duel boot by switching UEFI boot option. You can even reboot into UEFI from windows and Linux. It's about as easy as it gets with minimal effort. Or you can setup an efi bootloader on Linux disk that allows you to launch windows instead. These days duel booting is easier than ever, duel booting via a single hard drive has always been a clumsy way to do it.