this was due to low interest rates and savings/stimmies not anything about remote work
[0] https://duckduckgo.com/?t=lm&q=amazon+pandemic+growth+cause&...
[1] https://www.nytimes.com/2021/04/29/technology/amazons-profit...
[2] https://fortune.com/2021/10/18/amazon-massive-growth-covid-p...
[3] https://www.cnbc.com/2020/09/29/how-amazon-managed-the-coron... (non-paywall, yay!)
However, I fully expect that during the pandemic people discovered a lot of things that they could have picked up in the next couple of days in "only" 25 minutes or so can actually be ordered from Amazon at competitive prices. I ordered from Amazon a lot pre-pandemic but added various random stuff instead of going to, say, Home Depot.