You'd be surprised. Some banks who sold their mortgages to fannie mae but retained servicing, like Wells Fargo, have
been required to allow their customers to enter forbearance, but haven't been extended the same privilege by the feds. Basically, they have to keep paying the mortgage but can't collect from their customers. They will foreclose if they have to. They don't want to, but they also don't want to keep going further into the hole.