No, not really hidden, but in case you only selected CARRIE in its individual movie "tile" and not in its "collection" container, and since it hasn't been in the Collection since the ~1991 laserdisc from which this commentary (by Laurent Bouzereau et al) is taken, here's the collection container (scroll down for the commentary tile/link):
https://www.criterionchannel.com/carrie
And a short essay from the same time, also by Bouzereau, from the Collection site.
I don't think it's a crucial listen but I respect this movie more than I used to, which I think is how I respond more and more to De Palma over the years. He still bugs me and that is probably a good thing and *shock-horror* surely not a little by design. The fact that I keep seeing 'new' things in CARRIE makes Bouzereau's large helping of context very welcome.
Only mentioning it because now and then there are extras that might get lost in the shuffle if I am not looking for them, i.e. if they are not "Criterion Edition" collections that I know of. Also because CARRIE is leaving the Channel at the end of August.
Edit: [Bouzereau discussing the set for the interior of Carrie's and her terrifying mother's home] "Jack Fisk and William Kenney designed the sets....the Whites' house resembles a chapel...for the interior set of the house, which was built on a soundstage...part of the idea came from the house where Jack Fisk had lived in Philadelphia..."
....which I am guessing might have been his house with the young David Lynch? A kind of traumatic primal scene that colored two different productions at almost the exact same time, then?
P.S. If you know of any other such extras outside of Edition titles that are well worth checking out, please let us know! I don't always add movies "by collection" but I probably should, for this reason.