Background: The COVID-19 pandemic posed unprecedented challenges to higher education in Germany, necessitating a rapid transition to remote learning. This study evaluates the impact of the pandemic on academic functioning among German university students. Methods: An online survey was conducted with 207 students aged 18 to 35. Results: Significantly poorer academic functioning was evident during the pandemic, particularly in academic output and role satisfaction. Younger students (18 to 24 years) experienced a greater decrease in contact with teachers and lower academic output compared to older students (25 to 35 years). These findings suggest that younger students may struggle more with remote learning due to challenges in self-regulation and time management. Additionally, pandemic-induced disruptions blurred the boundaries between work and personal life, increasing stress and adversely affecting academic performance. No significant differences were found based on sex or living situation. Conclusion: Academic functioning was significantly poorer during the COVID-19 pandemic. This finding highlights the need for targeted support strategies to mitigate the negative effects of the pandemic on students’ academic performance and well-being. Further research is recommended to explore the long-term implications of the pandemic on academic outcomes and student well-being.