The practice you're referring to is commonly known as planned obsolescence. Planned obsolescence is the intentional design of products with a limited lifespan or a specific point of failure to encourage customers to repurchase or repair them. While it is difficult to make a general statement about "many companies," as practices can vary across industries and companies, planned obsolescence has been observed in certain sectors.
In some cases, companies may indeed employ planned obsolescence strategies to stimulate sales and generate ongoing revenue. By intentionally designing products that are likely to fail or become outdated shortly after the warranty period, companies can encourage customers to purchase new models or pay for repairs, thereby boosting their profits.
However, it is important to note that not all companies engage in planned obsolescence. Many businesses prioritize quality, durability, and customer satisfaction, aiming to build long-lasting and reliable products. Moreover, legal and ethical considerations surround planned obsolescence, and in some jurisdictions, specific regulations are in place to protect consumers from such practices.
It is worth researching specific industries and products to determine if planned obsolescence is a prevalent practice. Consumer advocacy organizations, independent product reviews, and investigative journalism may provide insights into companies and products suspected of employing planned obsolescence.