I don't understand giving pre-release books to TikTok influencers for promotion - do TikTok aficionados really read books? I don't think the publisher's attitude of just getting buzz is sincere towards readers and authors.
They just need them to buy them.
And that’s been a staple for years, any trip to Goodwill will find you volumes and volumes of books featured on Oprah, etc, where the spines show zero evidence of having ever been opened.