It's not just "Gen Z" that is doing it. Look up "lying flat." It's not limited to China.
From the wiki:
Tang ping (Chinese: 躺平; pinyin: tǎng píng; lit. 'lying flat') is a lifestyle and social protest movement in China beginning in April 2021. It is a rejection of societal pressures to overwork, such as in the 996 working hour system, which is often regarded as a rat race with ever diminishing returns. Those who participate in tang ping instead choose to "lie down flat and get over the beatings" via a low-desire, more indifferent attitude towards life.
From the wiki:
Tang ping (Chinese: 躺平; pinyin: tǎng píng; lit. 'lying flat') is a lifestyle and social protest movement in China beginning in April 2021. It is a rejection of societal pressures to overwork, such as in the 996 working hour system, which is often regarded as a rat race with ever diminishing returns. Those who participate in tang ping instead choose to "lie down flat and get over the beatings" via a low-desire, more indifferent attitude towards life.
https://en.wikipedia.org/wiki/Tang_ping