The term is "enshittification". Some product or service is great when it's introduced and becomes a staple commodity. Then somehow the product or service quality is squeezed and reduced in order to have better margins. Look at Netflix. It's turned from being a one of a kind no brainer must-have into a marginal player alongside me-too streaming services that chop up the market. And hedge funds, IPOs and other financialization assume that the product or service quality and customer satisfaction don't matter in the least.

Nobody has a lock on anything these days. Businesses don't have a lock on customers, customers don't have a lock on quality of product, and investors don't have a lock on even getting their money out of an acquisition.