It's interesting that they will not accept any transfer-in, even reject a transfer, if the balance exceeds $250,000. This must be because of the FDIC insurance limit, and hence protects the consumer's savings. Quite the opposite of what some banks are trying to do: offer accounts that try to provide FDIC insurance over 250k by spreading your money among other banks.
MAXIMUM DEPOSIT LIMITS
The maximum balance for your Account is $250,000. We will include any funds deposited into your Account but not interest
or Daily Cash you’ve earned when determining the maximum balance limit. We may reject and return any funds transfer if
your Account exceeds the maximum deposit limit. You authorize us to return any funds that exceed the maximum balance
limit by check.
From the footnote 1: https://www.goldmansachs.com/terms-and-conditions/Deposits-A...