Intro to PowerApps Portals Presentation from recent community events and webinars.
Most of these presentations are pretty much the same with some variations based on region/timing.
Auckland Presentation (video): https://youtu.be/Gq0N8nQk4Xs
Power Platform 24 webinar: https://www.xrmvirtual.com/meeting-details/?id=626fc80b-70cf-e911-a860-000d3a537884