This is not a mix of words we normally see placed together. Several factors make this scenario possible. First, we seldom have depressions but instead, tend to roll through mild recessions, however, what we face may be far more severe. Second, in the past, times of falling economic activity have generally been deflationary as defaults rise but this time, not so much. Third, but not least, in the past, many events tended to be regional rather than global, but over the years as economies have become more interconnected the resulting codependency presents an increased possibility of problems spreading across the world.
Currently, the biggest source of demand comes from governments and not working people earning a living or businesses growing. If you remove all the money being spent on Covid-19 vaccinations, tests, and a slew of inefficient spending that has created little long-term benefits to the economy the GDP would fall like a stone.