I don't think depositors are going to lose any money. From press reports, SVB invested mostly in treasury and government-backed mortgage securities. It didn't have so much in the way of conventional loans. Bad loans I believe are the most common reason for a bank failure, and that's not much of an issue here.
Unless they invested in a lot in really long dated securities, 30 year bonds and the like, you'd think the money would mostly be there to pay off the depositors.
And in any event a takeover of their deposits by another bank is the likely scenario. That's what usually happens.
Here are bank failures back to 2001 and what happened to the deposits:
https://www.fdic.gov/bank/historical/bank/
Click on the year and you'll see details about the "Acquirer and Transaction" for each failure.
In most, but not all instances, the acquiring bank agreed to take over all deposits, or all deposits excluding certain brokered deposits.
I'd expect most of those brokered deposits were insured by the FDIC. My stock broker has a brokered deposit program. If you've got, say, a $1 million cash balance, they'll break it up into $250,000 increments (the maximum amount of FDIC insurance per bank per depositor) and place it with four banks. The brokered deposits typically pay a higher interest rate than nonbrokered deposits. So I'd guess the acquiring banks don't want to be saddled with those high interest rate deposits.