if a mushroom is covered in bugs it’s probably edible. centipedes, fungus gnats, and slugs are all common on my outdoor beds.
there are a few edible fungi i don’t see bugs eat, like meatier varieties such as shiitake and saddle backs, but i have never seen bugs go after poisonous fungi
some bugs will eat psychedelic fungi just like some animals will. but there tends to be less predation with them.