[old scientist, pointing at some data] After decades of research, thousands of experiments, a massive amount of peer reviewing, we can finally confidently conclude...
[smug dude with a ridiculous hairstyle] Uh yeah, but this TikTok by PatriotEagle1776 says your research is wrong
That's overly simplistic.
A lot of the social media content itself claims "decades of research, thousands of studies, yadda yadda".
At some level - unless you're taking deep educated dives into the peer reviewed analysis of a highly technical field - you are relying on someone else for information.
That is, after all, why we go to professionals for advice to begin with. Doctors, lawyers, professional engineers - each of whom have their own (often imperfect) understanding of the field. Some who may even be outright cranks exploiting their credentials for personal gain. Some who may even have elevated platforms (Dr. Oz for instance) to sprew the misinformation far and wide.