A lot of Bethesda content is quasi-procedural. TES and FO maps are littered dungeons/encampments that are pretty formulaic. Re-used passage & room artwork, generic antagonists, just little opportunities to engage in combat mechanics. And they respawn periodically, so you can go back and get your mechanics fix.
Everything in BG3 is scripted. There are no random encounters, wandering mobs, or replayable dungeons. Everything in the game is there intentionally, and everything in the game has been hand crafted.