GNOME’s Native Screencasting Feature is Taking Shape
429 Too Many Requests
https://www.omglinux.com/gnome-45-native-screencast-support/
The developer working on integrating network display functionality into GNOME Shell shared short video clip to the GNOME sub-reddit [...] the feature adds a “screencast” button to the row of actions in the Quick Settings menu. Clicking this opens a modal picker where the user can select any Miracast or Chromecast compatible displays on the network.