The IACOB project - XIV. New clues on the location of the TAMS in the massive star domain A. de Burgos, S. Simón-Díaz, M. A. Urbaneja, G. Holgado, S. Ekström, M. C. Ramírez-Tannus and E. Zari A&A, 695 (2025) A87 Published online: 11 March 2025 DOI: 10.1051/0004-6361/202453242