i don't have any stakes in this, but i do think it is important to get various experiences before we draw our own conclusions. there were papers that said that roundup was great for us once upon a time. amanita dreamer does have a lot to gain from making the mushrooms look safe, but we don't know what other gains there are to be had from making them look dangerous either. we have seen enough prohibitions to know better than to blindly trust perceived authority, and we know what kind of strings that perceived authority can pull.
i am not taking any sides or anything, but i can see why a person would be willing to listen to somebody who is a regular user of amanita muscaria even if the papers say otherwise. that said, you mentioned this is peer reviewed. i have not dived into this myself yet, but i will do if i find time or i intend to use amanitas without decarbing, but if there is heavy peer review then i am certainly more likely to believe the sources in question, but we have even seen many cases of biased peer review. these things are a minefield and to blindly trust scientific papers is potentially as dangerous as blindly trusting somebody online.
i know that is a taboo opinion and i think when it comes to choosing to put something into your body, until you are confident you can accept full responsibility for yourself you are better off not doing it at all, rather than trusting anybody, whoever they might be. if in doubt, don't put new things into your body.
be safe!
edit:
i just committed a moral crime and used AI to save some time

i understand my results are probably completely wrong, but this is not something i want to spend much time on right now. but the AI bot identified a few papers that are exploring potential positive effects of ibotenic acid used in low doses, including cancer treatment.
as i said, this could be completely inaccurate as it came from AI, which is well known for being completely wrong. but it's also worth mentioning that just because something can kill you doesn't always mean there are no benefits to it. the dose makes the poison.