Dropshipping might have worked as a decent side-hustle when the 4HWW was originally published many years ago. I think the space became flooded to the point where I concluded that it was impossible for an ordinary person to make decent money. It's probably also become much, much more predatory since then. It's more lucrative to sell dropshipping advice than it is to do actual dropshipping.

If you have an audience, dropshipping is still very viable.

That one little trick (/s) of developing an audience, especially a devout and loyal audience, is the part that most people are not good at.

The 4HWW came out 13 years ago. Probably could have made decent money as an individual dropshipper if you got into it early before all the hype started in ~2014