There is a growing body of literature on the use and selection of social media platforms for political activism. However, less attention has been given to identifying citizens who are politically disconnected—those registered on social media platforms but not engaging in political activities. Additionally, whether patterns of non-use of social media for politics vary across different platforms remains understudied. Based on an online survey of 1,978 respondents conducted after the 2022 French presidential election campaign, this article aims to address these questions by examining the patterns and factors contributing to political disconnection from social media, particularly across six platforms: Facebook, private social networks, Instagram, Snapchat, X (formerly Twitter), and TikTok. Our findings indicate that three main factors explain political disconnection: digital skills, interest in politics (except for platforms less frequently used for politics), and social media efficacy. These results provide significant and original contributions to the broader debate on how and why individuals disconnect socially and technologically on social media platforms. While many studies focus on the variables that account for political participation in the age of social media, ours examines the conditions that explain non-use in the context of political disconnection. We also contribute to the existing literature by analysing the phenomenon of non-use holistically, addressing platform type, demographics, digital literacy, and political traits (e.g., interest and competence).