I use Shadow. In contrast, there is bootcamp if you want to run your hardware. Mac's, with there cooling inefficiencies running Windows and gaming on them, would be a hard no in my book. However, some have excellent experiences with bootcamp. I prefer Shadow, see this --->
Link to my topic on Shadow.
I also prefer Shadow because I run older machines, and even with Windows Bootcamp, wouldn't be able to game on my Macs. I'm not sure what you paid for your eGPU, but it could probably fund your first year of Shadow, if you were to sell it.
Personally, I decluttered all my tech and sold off my two gaming rigs, and rely solely on this for gaming. It works.