There's a type of similar trap for devs, not necessarily a passive income trap because most go for a saas and accept the infinite-version release cycle.

What some devs usually fall for ( not by watching some youtube video, but by falling into the idea organically on their own as a kind of emergent behaviour ) is doing the minimal effort of a saas, like a template of the necessary part without adding the actual value.

The way this most often presents itself is a payment proxy, think about the minimal requirements for any software service, it charges money, so that's where they start, a stripe account, maybe an LLC, payment links or payment tables, they can now charge money. Then they make a frontend, a website, of any kind, this comes first, not to serve some kind of need, a landing page, and the actual product is a landing page as well, use react as well because that's the thing you do.

Finally, what is computing, it has something to do with data, so let users upload some images or videos, then you let them charge users for it. Bam, you have now reached the same app SaaS that millions of indie devs developed, like a patreon thing, an OnlyFans if you allow that shit, a gumroad. A host that allows uploaders to charge money.

If you don't even want to go through the hassle of hosting the images or content, you can just let the users upload a link, and charge for that

Must be thousands of these Linktree, campsite, taplink, patreon, cafecito, matecito, tecito.

The dropshipping thing is similar to this but it has a physical component, the idea of a business is just the minimal core, a caricature conception of what a business is, you buy a thing, and you sell it for more.