Because "Windows Infinity Simulator" is a community project rather than a commercial product, you won't find it on the official Microsoft Store. Instead, you can find it through:
A "godly" interface that combines the Aero transparency of Windows 7 with the sleek, modern layout of Windows 11. Windows Infinity Simulator
A coding platform where users like Resolute Trawler have built visual simulators. Because "Windows Infinity Simulator" is a community project