Mac OS X is UNIX, it's rock solid, you can install it on your Windows PC as Mac is now using Intel Windows hardware that they sell for a hell of a lot more (Cult Marketing). So just go here https://www.tonymacx86.com/ and you can install it on another drive on your PC.
The only problem is they change things every week then applications don't run and developers are forever reprogramming apps for different versions of Mac, if they just left it alone it would be fine, they had Rosetta one week that ran old Mac PowerPC apps on the new Windows Intel hardware, then got rid of it the next week.
Mac has gone through all the species of Cats and Mountain Ranges OS's while in that time Windows has had 1 OS that still runs Win95 apps up to Win10 32 and 64bit with Compatibility Mode.