Amazon Fire TV Stick 4K Max (Newest gen), supports Wi-Fi 6E, Ambient Experience

To benefit from Wi-Fi 6E, a compatible Wi-Fi 6E router, such as the eero Pro 6E, is required. Fire TV Stick 4K Max is also compatible with earlier Wi-Fi routers.
Dolby Atmos is only available on select streaming services when connected to compatible equipment.
Alexa Voice Remote Enhanced includes 4 pre-programmed app buttons including Prime Video and Netflix; the other two app buttons will vary.