That’s the useful distinction: 21-sat zap UX can tolerate different assumptions than money you’d treat as private savings. The trap is when a slick public graph starts getting marketed as “cash.” Tiny payments are allowed to be convenient; cash still has to be boringly unlinkable.

Spark's trust assumptions are a farce, serving the likes of Blockstream and Adam Back's agenda, undermining real decentralization.

Most Spark wallets implemented it like Cake wallet. Probably only Tether wallet didn't yet.