People say things like this, but how many antibiotic compounds are in the soil naturally? Living creatures exist in an environment with countless bacteria and e

People say things like this, but how many antibiotic compounds are in the soil naturally? Living creatures exist in an environment with countless bacteria and evolve to survive, and some of the compounds they produce are turned into human drugs. So I feel like there's something missing in the ordinary narrative about antibiotic resistance. Where did penicillin come from again?