As a standalone website (available on Microsoft Edge and Chrome) - MicrosoftStart.comAs a mobile app on both Android and iOSFrom the News and Interests experience on the Windows 10 taskbarFrom the Widgets experience in Windows 11From the Microsoft Edge new tab page

Microsoft Start is replacing MSN News and Microsoft News. However, for some reason, Microsoft officials said they would continue to make available and use the MSN branding, despite the introduction of Start. Microsoft has a Web Experiences Team (WebXT), encompassing Bing, Edge, MSN/Microsoft News, and content services, including maps. Many (most? all?) of the product decisions by this team seem to be focused on driving Bing to search and advertising profits.