Banks and credit unions have, as you indicated, FDIC insurance to cover at least some minimum amount of savings in their accounts. Stocks and bonds (in quality companies) generally perform well over time and are subject to pricing swings but I don't think that an investment in, say, the S&P 500 is going to vanish overnight (as hundreds of millions of $$$ in crypto has before, and likely will again, from outright fraud or theft). The article I linked indicates that crypto owners through Coinbase could lose everything with no compensation.
While it may be "more perception than reality" in your eyes, my only warning for others is to take those events and warnings seriously and don't invest your life savings in something like crypto or NFTs unless you like "living on the edge" financially. Nothing there has any value or backing to it in the real world....don't "play" with something you can't handle losing.