Google has published the first Android 11 Developer Preview on TV, which is available to download now. The preview not only offers an insight into what Android 11 will look like on Android TV, but it has also confirmed the existence of Google's first proper TV streaming device. Codenamed Sabrina, the dongle will support Dolby Vision and HDR10 natively.
https://www.notebookcheck.net/Google-Android-11-Developer-Preview-confirms-upcoming-Android-TV-dongle.477472.0.html