I learned recently that FinTech companies like Wealthfront actually aren’t FDIC insured but like to claim they are because the banks they use behind the scenes are.
But there was one case where a similar FinTech company went belly up for whatever reason and their platform closed down, and customers couldn’t claim back their savings because apparently all the money from everyone was pooled into a single (or a couple) of accounts on each of the backend banks, and the banks had no idea how much was owned by who. I moved most of my money out of my Wealthfront HYSA after learning about that.
To see if your financial institution is directly insured, you can check here: https://banks.data.fdic.gov/bankfind-suite/bank
EDIT: Found an article: https://www.cnbc.com/2024/07/02/synapse-fintech-fdic-false-promise.html