Here are a few rewritten versions of the headline in a formal tone:

1. Florida Declines $17 Billion Settlement with Meta Regarding Child Safety on Social Media

2. State of Florida Rejects $17 Billion Meta Settlement Over Minors’ Social Media Use

3. Florida Authorities Turn Down $17 Billion Meta Agreement Citing Concerns for Youth Welfare

4. Florida Refuses Proposed $17 Billion Meta Settlement Addressing Impact on Children

5. Florida Rejects $17 Billion Meta Settlement in Children’s Online Safety Case

Here are a few options for a formal title, each with a slightly different nuance.

Option 1 (Most Direct and Standard)

Call for Papers: JMIR Metascience and Research Integrity Seeks Submissions on Misinformation in Scientific Publishing

Option 2 (More Formal and Announcement-Style)

Announcement: Call for Submissions on Misinformation in Publishing for the New JMIR Journal of Metascience and Research Integrity

Option 3 (Emphasizing the Journal’s Mission)

JMIR Metascience and Research Integrity Issues Call for Papers on Misinformation in Scholarly Publishing

Option 4 (Concise and Professional)

Call for Papers: Addressing Misinformation in Scientific Publishing in JMIR Metascience and Research Integrity

I recommend Option 1 for its clarity and directness, aligning with standard academic publishing conventions.