Previously, in better mc (bmc) modpack , both Catalysis and Sculk Smite were quite common there. They could be obtained by way of villagers 'trades or enchantment table. However, in this version, villagers never had this transaction item, and swords would never be enchanted with Sculk Smite.

That must've been a bug, those are only meant to be obtainable in ancient temples

Sorry,but I explored more than a dozen ancient temples and opened all the boxes in each temple, but without these two enchantment books, there were all kinds of enchantment books (such as Thorns, Torrents, and enchantment books from other modules such as Honeycomb Cut) and the proportion and level of enchantment books were very low. It can't be a mod compatibility issue, right? (Other modules modified the trophy table)

You're searching ancient temples and not cities, right? I'll check this issue out

It seems like the basement can generate Catalysis books extremely rarely, but not Sculk Smite