I will entertain you as you are no longer looking for help or advice but can't accept that you have not grasped this.
Pasted directly form the FDIC site.
https://www.fdic.gov/resources/deposit-insurance/brochures/insured-deposits/The standard deposit insurance amount is $250,000 per depositor, per insured bank, for each account ownership category.
The FDIC insures deposits that a person holds in one insured bank separately from any deposits that the person owns in another separately chartered insured bank. For example, if a person has a certificate of deposit at Bank A and has a certificate of deposit at Bank B, the amounts would each be insured separately up to $250,000. Funds deposited in separate branches of the same insured bank are not separately insured.
The FDIC provides separate insurance coverage for funds depositors may have in different categories of legal ownership. The FDIC refers to these different categories as "ownership categories." This means that a bank customer who has multiple accounts may qualify for more than $250,000 in insurance coverage if the customer's funds are deposited in different ownership categories and the requirements for each ownership category are met.
https://www.fdic.gov/resources/deposit-insurance/financial-products-insured/FDIC Ownership Categories
The amount of FDIC insurance coverage you may be entitled to, depends on the FDIC ownership category. This generally means the manner in which you hold your funds at the bank
Below are examples of some FDIC ownership categories, including single accounts, certain retirement accounts and employee benefit plan accounts, joint accounts, trust accounts, business accounts as well as government accounts.
Single Account
Certain Retirement Accounts
Joint Account
Revocable Trust Account
Irrevocable Trust Account
Employee Benefit Plan Account
Corporation, Partnership, or Unincorporated Association Account
Government Account