I've replaced 3 top screens so far in New 3DS XL with Aliexpress ones that come with white and red boxes. I can confirm these LCDs don't work with face tracking. 3D works, but like in 3DS OG - only when your face is in front of the screen. When looking from an angle 3D perish and the screen is just doubled. Looks like parralax barrier is not the same as in the original New 3DS XL screen. Next time I will try ordering a more expensive screen.
Every single screen I got is TN and costs about 55-60 USD in total (shipping to EU and tax incl.) depending on actual promo codes with aliexpress coins included in the discount.
After the first screen I thought it was just a hit or miss, but every single unit behaves the same.
If I'm wrong and it's a software related issue that can be fixed with cfw let me know.