I will not be surprised if we witness a double-dip recession in Europe. The second lock-down is likely to hurt.
In addition, other parts of the world are not better-off. In a globally synchronized economy, 2021 might be another year with headwinds.
The problem with most advanced economies is surging government debt. It will have significant implications on long-term GDP growth. Much after the pandemic headwinds are navigated.
RE: Oxford Economics estimates that Greece will return to recession.