Binance's new USD1 event only requires you to hold to continue earning interest, with a total issuance of 40 million. There is no limit on the order number, with an annualized rate of 20%, which can be directly transferred to a unified account without the need to open a position.
There is a 1.2x bonus in the leverage and contract accounts. It's very simple, just open 100u or borrow 100u of BTC, and use the rest as collateral/margin. Low leverage is essentially to comply with the rules.