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.
Miracast on Sonys and Huaweis. My Huawei can screencast to more or less any smart TV minus Apple TVs. We have many Sony TVs and all work with my phone, unlike Samsung’s buggy Smart cast that does not know how to cast the correct screen orientation.
Isn’t samsung smart view also miracast?
It seems to be a bit modified and is not 1:1 Miracast. Compatible though.