That would gradually recruit antifungal-resistant yeasts, which can be very problematic (see Candida Auris which is thought to be the result of antifungal pressure in intensive agriculture).

re. beneficial fungi, AFAIK there are no known species that are part of our natural microbiota, but there may be unknown benefits. S. Boulardii supplements are know to help deal with gut flora disruptions like infections or antibiotic treatments.