In my opinion, fundamental analysis is more important in trading forex or crypto, just in different ways.
Forex traders rely on it to understand economic trends and central bank decisions.
In crypto, traders needs to asses things like project development, regulations, and market sentiment. Price action and indicators can still work, but fundamentals give context behind the moves.
So both should take it seriously if they want a deeper edge.
More or less, in any market and no matter who you are in the market as investor, trader or speculation, it is always important to do your own fundamental analysis before joining. It is totally wrong thinking if people consider fundamental analysis is only helpful and necessary for investors while traders or speculators in the market don't have to do such analysis.
Challenge for market participants is mandatory basic knowledge about the market as well as blockchain technically, before they are able to do good fundamental analysis. By feeling its difficulty, most people skip fundamental analysis that is their start of something bad later.