Ops. I believe I confused linear XYZ that enters the Oklab M1 matrix with the linear sRGB that enters the JPEG XL XYB's M1 matrix. When one converts them into t

Ops. I believe I confused linear XYZ that enters the Oklab M1 matrix with the linear sRGB that enters the JPEG XL XYB's M1 matrix. When one converts them into the same space first, XYB and Oklab are likely even more similar with each other.