I've always cooked morels, but eating raw white mushrooms seems pretty common in vegetable platters for example.
On the poisonous front, my grandfather used to pick and eat Gyromitra Esculenta. His preparation method apparently rendered them safe, but he had no idea they were deadly when not properly prepared. (It's been a long time, but I recall that he'd soak his mushrooms in salted water to "get the bugs out" and would typically cook them in gravy.)
https://paulstamets.com/news/raw-edible-mushrooms
https://old.reddit.com/r/mycology/comments/qm3dag/can_anybod...