Silicon Valley Bank offered sweep accounts to anybody with $1M+. If you lost money in this bank failure you're an idiot.
Yes people say it but in practise, it never happens︁ to anybody unless you're a Russian oligarch (I guess we have many Russian members here︂ that don't exactly advertise that fact). Happened to me a few times that a bank︃ told me "you can't wire USD to this particular country". I just converted to EUR︄ and then wired.
In the WORST case- if you banked at Rietumu, your USD balance︅ was just converted into EUR when they lost their US correspondent bank. Not the end︆ of the world.
I fail to see how "Foreign real estate" is safer than holding︇ US treasuries but to each their own... In my opinion buying a villa\hotel in Phuket︈ or some farmland in Panama is a LOT riskier than holding cash in multiple banks︉ and currencies. Plus you actually get INTEREST from banks now. 4% risk free in USD︊ is much better than even making 10% on some farmland investment (after you take into︋ account fees, taxes) not to mention you can lose it all on currency fluctuations.
0.001% chance and even if︍ it happens (as it happened to Rietumu for example) your USD balance is just exchanged︎ into EUR balance. So worst case you will pay some fees.
Your biggest risk is️ you wiring to some semi-shady country\person and your bank gets a call from the US Fed asking for documents. Most likely your bank will prefer to close your account rather than fill 300 pages explaining what you do and who you are.