Texture sample offset results in pixelization on Android + Quest

Developer Notes

By default mobile uses half precision in pixel shader calculations to improve performance. You an either perform the texture coordinate math using full precision by checking the "Use Full Precision" checkbox in the material (under Mobile), or by using a Customized UVs to perform the UV math in the vertex shader, which always uses full precision, and passing the result to the pixel shader.

There's an extra nuance for external (media) textures which can make them use half precision even when using Customized UVs. If you notice this, use the Full Precision checkbox.