Be careful what you download, even if it is claimed that it is for a good cause. It wouldn't be the first time someone has misused a time of crisis to gain profit for themselves. Not saying that is the case here but like always: "Don't trust. Verify"!
I agree with that. Of course that is good and noble thing to support such initiative to fight corona virus but we also need to think about security and safety in the cyber world, so check everything before you start to download something on your computer.