Mental wellbeing remained at its post-pandemic low with yet again no sign of movement towards pre-pandemic levels.

This was said in the mental state of the world report.

In 2023, at both a global level and at the level of individual countries, MHQ scores remained largely unchanged relative to 2021 and 2022, after a sharp drop during the pandemic years. This raises important questions about the lasting impact of the pandemic, and how shifts in the way we live and work and the amplification of existing habits (e.g. remote working, online communication, consumption of ultra-processed food, use of single- use plastics) have cumulatively pushed us into a space of poorer mental wellbeing.
Younger generations, particularly those under age 35, saw the steepest declines in mental wellbeing during the Covid-19 pandemic while those over 65 stayed steady. With these declines persisting across all age groups, the pandemic amplified a pre-existing trend of poorer mental wellbeing for younger generations that is now visible across the globe.

As in previous years, several African and Latin American countries topped the country rankings, while wealthier countries of the Core Anglosphere such as the United Kingdom and Australia are towards the bottom.
This pattern suggests that greater wealth and economic development do not necessarily lead to greater mental wellbeing. In 2023, data from the Global Mind Project identified key factors that explain these patterns, such as getting a smartphone at a young age, frequently eating ultra-processed food and a fraying of friendships and family relationships, that are typically more prevalent in Internet-enabled populations of wealthier countries.

https://mentalstateoftheworld.report/2023_read/