Amazon.com Inc (NASDAQ:AMZN) stock is plummeting after hours following the release of its 1Q earnings that revealed the impact of the pandemic, labour shortages, unionization efforts and other challenges on the business.   The company reported a 7% increase in revenues, achieving $116.4 billion for 1Q 2022, compared to $108.5 billion in the same quarter last year, which is in line with analyst expectations.