It’s possible, I’m just wary because mushrooms seem to be a very popular topic for AI slop generation. The picture you linked shows the stipe looking more like I’d expect so it could be the particular combination of lighting and macro lens making it so gold and reflective in the post here. Very rare indeed to find any kind of mushroom totally clean of any dirt though, particularly in such a wet environment. I can’t really look any deeper because I don’t do Instagram.

Fungi are indeed magical and sometimes quite alien. I do some of my own macro fungi photography.