Making a 100% deadly virus more contagious, or from the other perspective, making an extremely contagious virus more deadly, certainly sounds like “gain of func

Making a 100% deadly virus more contagious, or from the other perspective, making an extremely contagious virus more deadly, certainly sounds like “gain of function” to me. In either case the virus under study has been made more dangerous / improved on its prior “function”, which was a likely outcome of the experiment. ¯\_(ツ)_/¯