Crypto buying and selling

I bought and sold cryptocurrency (Bitcoin and Ethereum and others) last year (2021) and my broker didn't send me any statements for taxes. They claimed I did less than $600.

1) Do I need to report the sale to IRS like a stock, but I have no brokerage statement?

2) There is a question on the taxes that did I trade crypto, do I need to check yes? What does that trigger from IRS?