On Windows 11, Copilot will live inside File Explorer, likely in a sidebar or Details/Preview-pane-like interface.

Windows: File Explorer in Windows has a ton of links in the sidebar for quick access to places you might need. If you don’t often visit your Homegroup, however, the tiny app Windows Explorer ...

If you're not a huge fan of the stock Windows File Explorer, you can always replace it with a third-party app. Sure, it's not an officially-supported solution, but it can make the difference between ...