This is November for DS, so it is understandable that Switch lost some ground. It will be interesting to see how they compare 2 months from now.
Next month NDS will be at ~93.4 million units. Seems the lead then will be bigger than ever before.
A month later NDS is at ~95 million units.
Month 54 NDS will cross 100 million, which is August 2021 for NSW.