Here are a few ways to rewrite the title in a formal tone, depending on your preference:
Option 1 (Direct and Academic):
“An Examination of Social Media’s Impact on Global Well-Being: A Report by Leading Experts for the 2026 World Happiness Report”
Option 2 (Concise and Formal):
“Assessing the Influence of Social Media: Expert Analysis for the World Happiness Report 2026”
Option 3 (Slightly more descriptive):
“The 2026 World Happiness Report: Expert Perspectives on the Societal Impact of Social Media”
Recommendation:
Option 2 is the most professional and standard for formal reports or press releases.