So I looked up if taking a placebo while knowingly knowing it is a placebo may actually have positive benefits, and it turns out that it may be the case:

muse.jhu.edu/article/704376

npr.org/…/is-it-still-a-placebo-when-it-works-and…

Now I’m curious on whether this is a generalized phenomenon for humans, or only for a certain subgroup, such as those more likely to suffer from psychosomatic symptoms.