I am seeking a solution that will enable me to mirror the screen from Android (LineageOS 20) to Android TV (LineageOS 20 for Android TV). Chromecast is only accessible for Google-certified devices; therefore, Chromecast will not function here.
Is there a project in which I can install the receiver app on the Android TV and the client app on the Android phone to accomplish this?
Well, if you can use a windows/linux pc as host, you can use Sunshine Stream. It uses Moonlight receiver app which is on basically everything that computes. But it’s host software is not on Android (probably)