Updated to two tricks. And you could argue three if you call banking its own trick. Afterpay was an acquisition (and much smaller) so IDK if that counts.
Still, all the bitcoin stuff, music, other side ventures, most of the international expansion, attempts to appeal to bigger businesses, the recent "focus local" vision, all hardly made a dent in the respective markets and I wouldn't be surprised if they lost money or are still losing money on most of those things.
Afterpay (and the other Buy Now Pay Later competitors like Klarna) are potential financial arrangement facilitators for their customers.
Sure the BNPL model uses effectively invoice factoring with high interest penalties but they do have a financial relationship with both vendors and buyers.
There's a lot to leverage there. It's Paypal with lending attached.