The most impactful change had nothing to do with VR. Version 1.6.0 quietly introduced a mechanism that temporarily overclocks the Nintendo Switch CPU during loading screens.
Regardless of the version, downloading and installing the latest updates for your official copy of the game is straightforward. Here’s a step-by-step guide for both consoles: zelda botw 160 update link
Beyond the advertised VR capabilities, data miners and tech analysts discovered that the 1.6.0 update utilized the Nintendo Switch "Boost Mode." The most impactful change had nothing to do with VR