Thank you for your feedback. Unfortunately, we needed to sunset the ability to insert live websites into PowerPoint slides. We made this decision for two reasons. The first and most important is that there are security risks inherent in enabling unchecked website addresses to load in a PowerPoint slide. Those risks have increased since the date we originally released this feature. Second, Microsoft now supports this functionality with their free Web Viewer app. So unfortunately, when considering the security risk and redundancy with Microsoft's own app, we decided to sunset this functionality. 

If you have any additional questions or feedback, please do not hesitate to reach out. Thank you!