The trading system in Forex and Crypto is almost the same, the most obvious difference is the number of choices or pairs in Crypto is certainly very much compared to Forex, the other thing is a very large profit and loss opportunity compared to forex which looks very stable so it is difficult to get profit
actually i will like to concur on your contribution. Because when perusing into this two factors of trading, it's not noticable of the comparison. On your own you may think that forex trading is equivalent or is same thing to cryptocurrency trading. When you are emphasising or hitting at the risk level of losing. It's directly obvious that cryptocurrency trading get same amount of lost forex traders do get during lost of trade.
I believe, it depends on the user how much knowledge he has when it comes to forex or crypto trading. Both have the risks of losing your funds, but it is your acquired knowledge and skills that will aid you in battling those risks. But the simple difference of these 2 was posted by mk4, so the OP has basic understanding about these 2 kinds of trading.