Main purpose/reason for GDP reduction from 2020 to 2022 was?

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Main purpose/reason for GDP reduction from 2020 to 2022 was? Answer: Global economic slowdown due to COVID-19 pandemic

The primary reason for the global GDP reduction from 2020 to 2022 was the onset and ongoing fallout of the COVID-19 pandemic. Widespread lockdowns, travel restrictions, and supply chain disruptions severely restricted business operations, consumer spending, and international trade.