That Hannity didn't believe Sidney Powell's nonsense isn't surprising; it was baseless garbage from the jump.

But that he hosted her anyway, even after Fox itself had kneecapped her, is a reflection of how toxic the network really can be. https://www.washingtonpost.com/politics/2022/12/22/fox-news-hannity-trump-2020-election/

Why Sean Hannity’s dishonesty matters

The Fox News host reportedly admitted he elevated false claims he didn't believe after the 2020 election. His was the most-watched show on cable news that year.

The Washington Post
@pbump
Just a guess, but he probably doesn’t believe most of what he says, but the gig pays well