All the European offices are WFH now. The US offices aren't? My colleagues spread all over Europe once the quarantine kicked in here, some of them are on Asian beaches too.
Yes, some people are there since the closedown up until now.
In practice, there are tons of companies outsourcing customer support to India, entrepreneurs managing their ecommerce sites from Thailand, managers opening their Salesforce there, guys with Slack company accounts on phones etc...