it's here
Ray tracing and NVIDIA DLSS are now part of the official Minecraft Windows 10 Bedrock client, enabling full cross-platform compatibility, multiplayer support, and all the other features of Minecraft you know and love.
www.nvidia.com
These are the worlds I have been playing, it's pre-built worlds, you can't generate your own for some reason, and as I mentioned earlier, the view distance and options are limited to make it actually playable.
It feels like some controlled beta thing, if you played normal Minecraft a lot, it feels very stinted and restrictive, even if it looks great.
The problem is, I would think, that when you expand the view distance, the amount of light calculation becomes absurd and it will lag even heavy-duty computers. I would guess that this is the issue with ray-tracing on consoles too, the games aren't built ground-up with ray-tracing in mind, and it becomes hard to force it into the game later, so you end up with these half-ass ray-tracing modes. Like Cyberpunk, for example, it looks good with ray-tracing, but it's nowhere NEAR as cool as you would expect, and I would imagine a lot of that is because if they boost it to maximum, it would crash the game. At least that is my presumption with no understanding of ray-tracing at all.