"This project is part of the U.S. 2020 Facebook and Instagram Election Study (Gonz´alez-Bail´on et al. 2023; Guess et al. 2023a,b; Nyhan et al. 2023; Allcott et al. 2024), a partnership between Meta researchers and unpaid independent academics. Under the terms of the collaboration, the independent academic authors had final authority over the pre-analysis plan, data analysis, and manuscript text, and Meta could not block any results from being published."
Page 7 of the PDF shows the following:
"This project is part of the U.S. 2020 Facebook and Instagram Election Study (Gonz´alez-Bail´on et al. 2023; Guess et al. 2023a,b; Nyhan et al. 2023; Allcott et al. 2024), a partnership between Meta researchers and unpaid independent academics. Under the terms of the collaboration, the independent academic authors had final authority over the pre-analysis plan, data analysis, and manuscript text, and Meta could not block any results from being published."