https://techcrunch.com/2022/08/10/meta-portal-owners-can-now-use-their-devices-as-a-second-screen-for-pcs-and-macs/

Portal, the beleaguered brand of smart displays released in 2018 by Meta (then Facebook), is reportedly slated for a phase-out as the company refocuses the product line on the enterprise. Ahead of the transition, Meta is releasing new features — perhaps some of the last for current owners, as the case may be — that turn Portal displays into a second screen for PCs and bring the video calling experience to Macs.

Select Portal devices (specifically the second-gen Portal Plus and Portal Go) now support Duet Display, an app that extends the screen of a PC or Mac to allow users to drag open windows like they would with a second monitor. Meanwhile, the new Meta Portal Companion app for Mac puts Portal call controls in a MacOS widget, providing shortcuts for screen sharing, muting and volume adjustment as well as sending meeting, video and website links to a paired Portal.