https://www.bleepingcomputer.com/news/microsoft/microsoft-edges-collection-feature-helps-you-stay-organized/

Microsoft recently updated Edge for Windows and MacOS with a new feature called 'Collections' to help users collect and compare shopping items, collect and combine information from platforms like Wikipedia, and put together your event or research information in a dedicated panel for later reference.

Collections is currently exclusive to Chromium-based Microsoft Edge and anyone can test it in the Edge Canary and Dev channels, but you will need to manually it with an experimental flag.