@Stephanie Thanks for the link. Personally, it seems a bit crass to encourage hosts to offer free or discounted housing and also donate to non-profits who locate housing for those in need.
And to introduce this "donate" feature at a time when hosts have lost all their income from a pandemic is particularly tone-deaf.
Anyone, host or not, has the ability to donate money to relief organizations at any time they wish and many do. There's no reason whatsoever for Airbnb to add this to our hosting pages.