If you had relatively clean LSD and mushrooms, both of which you’d sampled, which would you recommend the hypothetical beginner I’d addressed?

If it’s LSD then something’s fucked in your supply or you’re a unique personality that doesn’t realize they’re different from the vast majority of others in some fundamental way.

I can definitely understand how some people would prefer LSD afterwards, with experience. I’d advise that person that long term LSD usage, even microdosing for performance enhancement, will definitely have permanent effects upon their psyche. Maybe good, maybe bad. Future them will decide.