> but typically all depositors are made mostly whole again
Typically, but no guarantee. And on what time frame, nobody knows.
Typically the FDIC finds another institution to buy the distressed bank, and backstops losses on bad assets. They were not able to do that in this case
I suspect many depositors will be taking losses in this failure
IndyMac depositors got 50 cents on the dollar above the insured amount in the 2008 collapse.
https://www.ocregister.com/2009/03/20/depositor-losses-final...
The first half is what FDIC insurance means. The FDIC helps distressed banks in a variety of ways, including insuring deposits under $250K, but typically all depositors are made mostly whole again.