[1] https://en.wikipedia.org/wiki/Instant_payment
[2] (widely attributed to Winston Churchill)
[3] https://enroll.zellepay.com/
[4] https://www.frbservices.org/financial-services/fednow/organi...
Everywhere else has instant settlement payment rails available for yonks.
And FedNow removes the need for Zelle or CashApp, assuming the banks offer it.
Of course, a regulator working for the consumers might mandate as part of a banking deposit taking license, that the bank must offer FedNow as part of the account at zero transaction cost to the account holder, perhaps with transaction limits.
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.
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.
I can make a lot of revenue selling $100 bills for $10. I'm not sure it'd "pan out".