a company does not publish its bank balance
onchain yield can work the same way, and we have seen many company use cases around private defi.
a confidential vault lets a treasury earn on stables without putting the position on a public feed. same yield. the size stays between the company and the protocol.
@primus_labs does this with stablecoins on bnb chain.
their stablecoin U becomes encrypted eU, you can then stake and start earning yield or you can send it to another wallet.