It was initially built with Microsoft's own proprietary browser engine, EdgeHTML, and their Chakra JavaScript engine. It was first released in 2015 as part of Windows 10 and Xbox One. Microsoft Edge (or simply Edge) is a proprietary, cross-platform web browser created by Microsoft. Proprietary software, based on an open source project
Xbox One and Xbox Series X/S system software Linux (specifically Ubuntu, Debian, Fedora, and openSUSE distributions)