People who had the spare cash lying around to "buy the dip" of the March 2020 crash (https://en.wikipedia.org/wiki/2020_stock_market_crash) caused by coronavirus panic and held their stocks until now have enjoyed 58% growth of their investment even when picking dumb index funds (e.g. S&P 500: 2237.40 at 23.03., current 3826.31).

Crises of this magnitude always benefit those with liquid assets / cash who can afford to buy out those who have to exit out of (financial) pressure and ride out the crisis. The 2008ff crisis was just the same - whoever bought a house at fire-sale foreclosure rates back then now has a lot of net worth.

Lockdown was an incredible easy time to make money. The market is up over 50% from the lows. Was an incredibly easy time to make a lot of money with very little effort or skill