Stand in the vault's line through the window and your place is yours. Sell it for USDC, or keep it and the vault pays you.
A vault lends out what you deposit. When everyone wants cash at once, the balance is still yours and the cash is gone.
Every figure in this line is a real withdrawal, waiting its turn. The taller, the more it is owed. Press one and read it.
Same line, same wait. But the ticket sits in a program account and the place is on a ledger. You hold it, and it can change hands.
Put a price on your place. If someone buys it, the USDC is yours in that transaction and they do the waiting. If nobody does, you lose nothing. The vault pays you in turn.