There's a class of conspiracy theorist who ties everything into a grand unified theory, usually anti-Semitic. Some are anti Jesuit. They're not picky about conspiracy theories, they like them all. So the moon landing was faked, argument over the origin of Covid was suppressed, mkultra happened, because ... The Jews, somehow, for some reason. This is usually who is meant when "conspiracy theorist" is used.
A recent example is Epstein. Epstein ingratiated himself to powerful people to preserve his human trafficking operation. Some of those powerful people partook in his sex trade. He may have had connections to intelligence agencies. This was all varying degrees of a conspiracy theory ~five years ago and some people got this right.
But you have to be careful because there's a lot of conspiracy theorists who believe that Epstein's operation was harvesting adrenochrome from children for the benefit of those powerful people. Either as an anti-aging drug or as a satanic ritual, which explains how the powerful people became powerful. Epstein and his associates were/are evil perverts, they're not satanically powered.
The people who manage to avoid the adrenochrome level of theorizing are interesting and may be worth listening to on certain subjects. It's unfortunate that there's not more people in that category. They mostly dodge the label "conspiracy theorist", depending on what they talk about.