Thank you so much, I love your excitment and I hope you have a fun experince playing it with friends.
For your question, NPC bugs don't use moves, but NPCs can still gather Webs. Just as player can use Webs to reroll unfavorable results, a conflicting NPC can use thier Webs to reroll the players favorable results to try to oppose them, or spending Webs to power their features. NPCs with lots of Webs could be highly knowlagable bugs with vast amounts of connections and leverage. Webs are like Cuticorium's leveling system in that way.
The Scar move is the exception to this, if there is an NPC bug that initiates a hostile physical attack on the players. But generally Cuticorium wants the players to be the active force and the NPCs are reactive to the player's failures and successes.