Best advise is avoid anything regarding covid19 platform when regards to donation, investment or transaction.
I'm pretty sure people know that investment on COVID19 is pretty shady, but some donation programs are legit. I believe it is not that hard to distinguish the fake and the real one.
Avoiding them altogether would decrease the number of funds for helping people in dire need. I bet any government bodies won't suggest something like that. Especially when they can't solve it on their own.
We can't really be complacent right now since this is really a serious matter that even WHO and Interpol have guidelines regarding COVID-19 related scams, this only mean that there are already a lot of victims because of the use of the current pandemic with such investment schemes. What would be more appropriate for this agencies who are already aware of the scams happening is to blacklist this sites in order to lessen the chances of them having new victims, I know that they have the power to do that and instead of just reminding people about the current scams happening I think this will be a better solution overall.