Taker, directly matching at the current price, consumes liquidity (taking orders), and excessive consumption of liquidity can lead to increased price volatility, which may cause some people to be liquidated. Therefore, to avoid being criticized for liquidation, exchanges like Binance set higher fees for takers to suppress price fluctuations.
Maker sells at a higher price than the current price and buys at a lower price, thereby providing liquidity. To encourage liquidity accumulation, exchanges offer makers lower fees for orders, represented by the recently popular fee-free USDC orders.