Is the high-energy environment of K2-18b special?S. Rukdee, M. Güdel, I. Vilović, K. Poppenhäger, S. Boro Saikia, J. Buchner, B. Stelzer, G. Roccetti, J. V. Seidel and V. BurwitzA&A, 707 (2026) A219DOI: https://doi.org/10.1051/0004-6361/202557601