Just note that the FDIC provides deposit insurance up to $250k per named individual on the account. So joint accounts with married couples would be $500k. You can add children to increase as well.
Also, holding all of your fiat in a single bank or financial instrument is usually not a great idea. Diversification is important to any relatively stable financial position.
E.g: Fiat over $500k in a single institution is likely not earning as much as it could and runs the risk of loss of access to funds for X amount of time if the bank fails, until reimbursement happens. But $100k each in 2 different banks leaves you with $300k to invest however you see fit and still have enough liquidity to move quickly on opportunities.
