https://www.scotusblog.com/2022/06/justices-side-with-high-s...
My personal opinion, if it matters is that Gorsuch argues that we need to assess religious exercise and the establishment clause based on what the founders knew and thought, and he misconstrued (as shown in the pictures in the dissent) the facts of the case to achieve his preferred outcome.
But even if he hadn't, there's a danger to Originalism, in that people in the past didn't have the information we have now. The founders probably weren't nearly as aware of how children are uniquely vulnerable to coercion and influence by authority figures, for example.
Thomas Jefferson wrote (and this quote was inscribed on his memorial), "I am not an advocate for frequent changes in laws and constitutions, but laws and institutions must go hand in hand with the progress of the human mind. As that becomes more developed, more enlightened, as new discoveries are made, new truths discovered and manners and opinions change, with the change of circumstances, institutions must advance also to keep pace with the times. We might as well require a man to wear still the coat which fitted him when a boy as a civilized society to remain ever under the regimen of their barbarous ancestors."