Using mouthwash every time is not ideal because most mouthwashes disrupt your oral microbiome which will result in undesired side-effects like teeth staining etc.
I've heard this before, yet my mouth remains... unaffected.
What does an "oral microbiome" even mean? I understand what it means in the literal sense, but would a person's mouth be dysfunctional if it were hypothetically devoid of microbes? Is there an accepted healthy oral microbiome composition?