Contrary to popular belief, global population growth is not exponential. Although the overall population is still increasing, the peak of growth occurred in the 1960s when it exceeded 2% annually. Since then, growth rates have dropped by more than half, now is below 1%. The United Nations predicts this decline will continue, and by the end of the century, we may see negative growth, meaning a global population decrease rather than an increase.
The designation of “more developed” and “less developed”, is intended for statistical purposes and does not express a judgment 
about the stage in the development process reached by a particular country or area.
SOURCES
UN, World Population Prospects (2022)
United Nations, Department of Economic and Social Affairs, Population Division (2022). World Population Prospects 2022, Online Edition. https://population.un.org/wpp/Download/
World Population Prospects 2022 is the 27th edition of the official estimates and projections of the global population that have been published by the United Nations since 1951. The estimates are based on all available sources of data on population size and levels of fertility, mortality and international migration for 237 countries or areas. More details at https://population.un.org/wpp/Publications/.

OurWorldInData.org/population-growth/
Own work
Francesca Mattiacci