You can microdose with mushrooms, or anything really. Microdosing has become increasingly popular over the last few years, but I doubt it's ubiquitous where everyone is knowledgeable on the subject.
Not only is microdosing a thing, shrooms can be used recreationally with none of the cliche shroom effects.
I have a very adverse effect to alcohol, so if I'm seeking a mild buzz or want to enjoy social events more -- or just want a mental vacation -- a <2g dose (dried cubensis -- this is way beyond microdosing, but just on the topic of "not all shroom experiences are space walks") yields just a nice feeling and experience that lasts for many hours. I'm more in the moment, relaxed, and seem to enjoy experiences more, without hallucinations or altered judgment.
Obviously I need to disclaim that this is my experience. Other people might become murderous psychotics or something. I don't encourage anyone else to do anything based on this. However there is a pretty common advocacy of microdosing.
Though this submission is utterly absurd if it's seriously positing that the public at large is microdosing rather than taking walks.
Tell that to Justin Zhu. But it's not just LSD and mushrooms. It's nootropics and stimulants too just to keep up in the Red Queen's Race of Silicon Valley at places like AWS. And I know people firsthand who are to up these shenanigans.
But ask yourself perhaps why a job should implicitly require this and I think you'll come up short. Tech shouldn't be a choose your dystopia misadventure IMO.