NXNative contains no code relating to the Switch 2's software or hardware interfaces or features. For MKW to run on it, the game would have to execute through the Switch 1 software environment, with Switch 2 upgrades handled separately. So this is clearly fake.
Mario Kart World on iPhone 18 Pro via my private nxnative fork.
Physical memory usage is fairly low due to implementing userspace file-backed memory (swap like).
Disclaimer: I will not be releasing the code for this project anywhere.