I think you are wrong, because currently a bear market is happening, it's just that the correction that occurs in 2021 is not as big as in 2018, but still a bear market will always occur when the bull run is over, therefore I always recommend not panic sell when a bear market occurs and hold or buy more, because I'm sure sooner or later the market will recover and increase very high again, so that we will get profit back from investing in cryptocurrency.
That is correct, a bear market is a bear market no matter how big or small the drop is. For example we are in a situation where we made a good profit in 2021 and then it crashed 50%, if you are not going to call 50%+ drop a bear market then what are you going to call it? Obviously it is a bear market, and yes it is not as harsh as 2018 that is true, in 2018 I have seen coins go down as much as 95% at some point, and bitcoin was down more than 80% and we still recovered, so there is really nothing wrong with calling it 2018 the biggest bear run I can remember.
However just because there were 80-90% drops in 2018 doesn't mean that the current 50%+ drop in the crypto market these days is not bear market neither, there are levels of it for sure but they are all still the same bear market. I hope that we can recover quicker from this as well, that would be great.