Windows95 is described as 'Windows 95 in Electron. Runs on macOS, Linux, and Windows'. There are three alternatives to Windows95 for a variety of platforms, including Windows, Linux, Mac, Android and BSD. The best alternative is DOSBox, which is both free and Open Source. Other great apps like Windows95 are ReactOS (Free, Open Source) and FreeDOS (Free, Open Source).
ReactOS™ is an Open Source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft® Windows™ NT family of operating systems (NT4, 2000, XP, 2003, Vista, Seven).