No wood. I zoomed in closely on my PC and they appear to be mostly leather (leatherette?) with no stitching, unlike X7 which has all kinds of fancy materials.
I think the formula is "3 row RX done correctly". I don't think TX is intended to be high-end, and they're going to sell a ton if that lets them keep the price down.
Lexus will be given a pass from the press and consumers, but if you compare an X5, GLE, or GV80, the TX falls short. The saving grace is that it is quite a bit more spacious than these 3.