Not all of them it seems. It was in one of my beef and (mostly wild) mushroom 'random chilli'* that I was just spooning up and gulping down in what at the time was a long-grown, gnawing hunger during which I had quite literally, not a bean, not a mouthful of rice nor a slice of bread and butter for not very far off two weeks.
So I wasn't exactly too patient in diving in to wolf it down. Interestingly, if one can call the observation of a turd being dropped down the john 'interesting', it was not one of the wild goodies I'd picked that day that came out wholly undigested or minimally acted upon by gastric and intestinal 'juices' just the Agaricus I use as a cheap mycological bulking agent that doesn't need stalking, shooting, skinning, gutting etc before eating.
Not fond of them at all really, although I don't DIS-like them actively, just not at all choice eating IMO....lol I am probably jaded and spoiled for choice over the years (since 4-5yo) that I've been experimenting with different exotic wild fungal munchables, as I've had so many different and delightful delicacies, white Agaricus button mushrooms to me are just tasteless bulk protein that costs fuck all and is too easy to grow really to present an interesting challenge in the lab
And if I come accross them growing in the meadows or for some species, deciduous woodland/forest, then most edible species of Agaricus I just won't bother to take, unless I am having a hollow day, or days or week etc.
Mainly the prince (A.augustus), A.bisporus (these can get BIG, I've seen and eaten specimens that were not all that shy of a foot in diameter, very thick, meaty flesh and one single mushroom can easily feed two average appetites for a single meal, A.arvensis (horse mushroom, not as whopping huge as A.bitorquis can get but not a mere stingy little mouthful either. Horse mushrooms have a nice smell of aniseed, which can be really overpowering when fresh but diminishes in intensity when cooked and added to a meal)
And the best of the ones I've found, aside from the prince, I think, has to be Agaricus macrosporus, which can grow to around two feet in diameter (cap), again one of those Agaricus spp. with a strongly aniseed taste and scent. I've seen some pretty big gilled mushrooms in my time, but never, ever have I seen a gilled, stemmed mushroom that outcompeted A.macrosporus for sheer size and density. Seen some with unopened, still rounded caps that had a similar size to the average canteloupe melon, and with a density that makes me think kind of like what a chilli-ed clenched fist would be like to eat lol
A.macrosporus isn't really a one-meal, or even one person 'shroom, but a full grown one is enough to provide the mushroom bit of a meal for an entire family, may well be more than one meal in fact.
*its random because what else ends up in it depends entirely on what is in season, and if I am low on money for meat, whatever happens to be cute, fwuffy and doesn't know to run like hell when there is a hungry man with a basket of just mushrooms and wild fruits and no meat in it; a'creepi'n through the woods with a rifle+high magnification scope.
Here little squirrel...I've got nuts and acorns, I promise....lots of nuts and acorns and lead
phobia.