Let me put it like this, the most fundamental aspect of trading is the technical analysis but the fundamental analysis cans be helpful sometimes as trends can affect the market.

Example is if China declears today that they want to legalize bitcoin, people will fomo and buy definitely. That is technical analysis but which make bitcoin price to go in the up direction.

If you remebe the time China finally banned bitcoin, the price decrease from $45000 to almost $30000 in some hours. That is fundamental analysis.

But technically analysis nks very important because the price of coins like bitcoin are following certain pattern. Example is an indicator that indicates overbought market which indicates that you should sell, or an indicator that indicates an oversold market which indicates you should buy. Another is RSI that indicates a market you should enter but leave in in short time like minutes after making few profits as it indicates the market may likely reverse back. Technical analysis is very important. This is the basic aspect new traders will learn about trading.