Bear market will not be like the past history as crypto is getting popular day by day and investors are increasing. So we can say bear market is the best time to build portfolio and also it will not go too dip like 2018 if we don't face any bad news.
I agree with you, bear market is an opportunity to fill your bags and get ready for the next bull run, during bull run, the people that makes the most profit are the ones that fill their bags during bear market.