Fully-heavy tetraquarks in the vacuum and in a hot environment Vinícius S. Silva, Cássio Pigozzo and Luciano M. Abreu Eur. Phys. J. C, 85 7 (2025) 783 Published online: 19 July 2025 DOI: 10.1140/epjc/s10052-025-14508-z