[dcolkitt]

Crypto was responsible for approximately 35% of Robinhood's revenue in 2021.

[metaphor]

Nope.

From FY21 10-K filing[1] p. 74, cryptocurrencies represented 23% of total net revenues, or 29.9% of total transaction-based revenues.

[1] https://www.sec.gov/Archives/edgar/data/1783879/000178387922...

[loeg]

The fee structure differs among their offerings, so that doesn't tell you relative popularity.