I don’t know about any “GoF.” This virus came from bats, which are known reservoirs of any number of diseases that are deadly to humans (Ebola, Marburg, rabies, SARS, MERS). I do not know why these bat diseases are so deadly to humans, although I suspect that receptor differences between humans and bats account for some of it.
Anyway, I would hope that Covid-19 mutates itself into a less deadly form. I recall from my studies that there are a number of pathogens that were more deadly when they first emerged than they were once they had established themselves in the human population.
https://www.theguardian.com/world/2020/apr/06/hydroxychloroquine-trump-coronavirus-drug
Read this, then you’ll know.
Since this virus looks like it started as a bat virus, should we be worried that it could infect bats around the world?
Bats are part of a local ecosystem (famously in Austin TX) and it would be damaging to have their population decimated by an Asian virus.
Not to mention the insects that they eat ...