Interesting what she did, but just only interesting. I see no advantage on doing that, because it will use the same pcie lanes for the storage and...
I have joined the insider program and started to download the game. It was downloading at 17Kbs last time I had a look... I believe there were too...
https://help.minecraft.net/hc/en-us/articles/360041035092-Minecraft-NVIDIA-RTX-FAQ
Yep, 9,99€ here in Spain store. May be only free on some countries?