https://ecfes.net/science/why-chronic-microdosing-might-be-r...
https://www.drugscience.org.uk/psychedelic-microdosing-lsd-o...
Infrequent, responsible tripping is definitely more beneficial than microdosing, and medical science is finally being allowed to study psychedelics, so not microdosing until the heart health questions are answered seems a smart course of action.
The only thing definite about using higher doses of these substances is increased potential, including risk/negative outcomes, in general.
Your assertion is asinine, unless you meant to say "definitely potentially".
Another part is self-education. Have conversations, explore the intellectuals and history and science of the subject, and learn your mental health situation. If psychedelics are inappropriate, or if you're uncertain, then the responsible thing to do is to simply avoid them.
At any rate, it looks like microdosing, to our best understanding, lacks evidence of benefit when considered against the possibility of placebo. We also know that the potential for heart damage from microdosing recommends against it. Lastly, we know for a fact that responsible full dose trips are among the most positive and powerful experiences available for people. I'd call that "definite," within the constraints of responsible use.
Personally I prefer a lesser processed product than something extracted using solvents and who knows what other industrial processes/opportunity for toxic errors...