Buying a cheap laptop is easy. You just go to Best Buy or Newegg or Amazon or Walmart or somewhere, you pick the cheapest one (or the most expensive one that fits whatever your budget is), and you buy it. For as little as $200 or $300, you can bring home something new (as in, "new-in-box" not as in, "was released recently") that will power up and boot Windows or ChromeOS.
Buying a decent cheap laptop, or recommending one to someone else who's trying to buy one? That's hard.
For several years I helped maintain Wirecutter's guide to sub-$500 laptops, and keeping that guide useful and up to date was a nightmare. It's not that decent options with good-enough specs, keyboards, and screens didn't exist. But the category is a maze of barely differentiated models, some of them retailer-exclusive. You'd regularly run into laptops that were fine except for a bad screen or a terrible keyboard or miserable battery life—some fatal flaw that couldn't be overlooked.