I think forex more danger and have a very high risk, I prefer to avoid playing forex because the movement of forex is also not very clear due to what the ups and downs while cryptocurrency more up and down in the cause by what.
Not that danger and obviously if you have to trade with forex you must know it like cryptocurrency before trading. Subsequently, forex had difference in trading that many novice traders aren't aware and it is more difficult to trade if you haven't enough skills in making trade.