Some of macOS’s features are so good, they’re now legendary. The Mac pioneered fast, local search using Spotlight. You can press the spacebar on any file to instantly preview it with Quick Look. The same goes for the Dock, and the ability to easily AirDrop anything between Macs or other Apple devices.
If you recently moved from Mac to Windows, you’re going to miss these features and more. Even long-term Windows users can appreciate how good these default Mac options are. As such, quite a few enterprising Windows developers have created tools that integrate these macOS features into the Windows environment, while making them feel right at home on a PC.