Do we know as fact if ACB/Kav/Gorsuch recused themselves or not in the TX case?
No, we don't. We only know that it required five of them to get the case heard, and Thomas and Alito went to the trouble to speak their minds about it. Implies that one or more of Gorsuch, Barret, or Kavanaugh were likely not happy with the standing issue, or were cowed by Roberts on this one.