Copied from the previous Linuxslate.com Forums, Dec 2023.
Just a quick post to state that casting from the Steam Deck to an Android TV or other Chromecast compatible device does work -- At least in VLC.
UPDATE: We can confirm that casting the screen works too. See below:
1. Install VLC from the Discovery App
2. Select Renderer from the Playback menu.
3. Select your device
This will work for any audio or media you can play in VLC. Performance at least for audio is acceptable with few glitches or dropouts. Album Art does appear on the TV screen.
Volume must be controlled from the Chromecast (receiving device)
Of course the Steam Deck and the display device must be on the same WiFi network as always. The Steam Connect app is not needed on the display device.
Casting is also confirmed to work in Google Chrome, and full screen casting is possible. As is to be expected, there is lag. In fact just navigating the cursor around is difficult. Gaming is pretty much impossible for most games. It's fine if you want to game while holding the Steam Deck, and another person watches on the (presumably) larger screen. They will simply see everything delayed by a few milliseconds. Watching a movie or video also works fine. We suggest purchasing a basic USB-C HDMI hub and an HDMI Cable as discussed in the Accessories Thread.