Who can use a folding screen? What is the sentence above?

Three years of wind and rain, three years of love. After three years of ups and downs, the phrase "Who will use the folding screen" mainly comes from hot topics and stalks on the Internet, aiming to describe the folding screen mobile phone as a new and relatively high-end mobile phone type, which is often used by people with ability and demand. Here, three years of ups and downs and three years of love are describing an experience or environment, and who will use the folding screen is describing the people who have the ability to use the folding screen mobile phone in this experience or environment.