I've heard Remdesivir has some major positive effects... like cutting hospital stays by 20% or something like that, and mortality by a decent percent. But it probably needs some additional parts to a 'cocktail' to bring more deaths down closer to 0. I think we could probably get it closer to 10-20% of current death rates w/ the right treatments, but that takes time/studies/etc... I mean HIV while no vaccine is available they've pretty much cut back on death w/ azt/other combo's of drugs.
But it wasn't built in a day, I hope they do get treatments coming soon though, that also address long-term effects of covid and prevent some of those... cause that's my biggest worry, how this affects us all over time.