You have to dig. Find someone credible and MAKE SURE they are credible, then listen to them and that usually is the right start. They will lead you to more credible points of contact (other experts, studies, quality anecdotes, books, lectures, etc) you can look into further and verify independently.

Once you start finding multiple credible sources that have overlapping conclusions then you know you’re on the right path.

During Covid when I found Jon Ioannidis that was the start of unraveling the web of lies. Lead me to the right people, studies, anecdotes and answers over time.