This is not just a case of metamask. The more transactions are made, the more demanded, the more those who want to make a transfer to the stock markets as soon as possible are willing to pay a high commission. If the gas is kept low, the token will either go to the stock market much later than desired, or it may not be transferred to the stock market even though the commission is cut. High commissions occur in every bull market. During the bear market, high commissions do not arise because most people hodl.