Also, as an owner with two short-term rentals, it has been very challenging for us as well. We are getting cancellation requests for bookings into May and June that are outside of our 90 day cancellation window. Vrbo is pressuring us to allow those guests to cancel, but this isn't easy for people depending on that income. We have been trying to allow cancellations if travel isn't allowed (our units are in Hawaii so incoming travel isn't really allowed right now), but many of the travel bans currently in place are for 30 days.
Work was paying, but don't really like spending other people's money, and what a terrible service.
[1] https://www.delta.com/us/en/advisories/coronavirus-travel/ca...
Can't speak to Booking or Hotels.com, I always book directly to not get hosed when changes are necessary.