If "study finds" anything, it's safe to run away from it. It's the same studies that found "cholesterol free" toxic plant oils (that they produce just to prevent from being eaten) to be healthier than the ONE COMMON food ingredient that all of humanity has had in their diets: "animal fats"... it's the same studies that found untested, unproven vaccines to be "safe and effective".

"Study finding it beneficial" is a signal that people have stopped eating shitty low-nutrient, low quality, cheap to grow fungus... but they really want to sell it for a premium.

Unlike fruit-bearing plants, fungus do not benefit from anything or anyone eating them... so fungus have no incentive to be symbiotic. There is no reason to eat fungus except in the face of starvation.