I've seen whats on some bank balance sheets that are non public on some SEA and NG banks for $ deposits after briefly working for a few fintech's and doing intergrations (and prob will never see the light of day [and most wont blink an eye because its not crypto to clutch pearls about, esp some failures _pre_ covid global lockdowns that could fall under any of your classifications for cases, that were mere footnotes in the public eye wrt financials unlike tether which is still operating I might add to the chagrin of many]) information unlike what we have _seen_ for tether in _public_, and this very much hyperbole… ssdd in eurodollar land… even as far back as 1975[0] from Richard Debs, FRBNY’s Chief Administrative Officer:
"Finally, for the sake of logic, I should mention the legal framework of the Euro-dollar market, since I included the Euro-dollar market in my working definition of international banking from the point of view of the United States. However, I’m afraid that I can’t do much more than just mention it. The Euro-dollar market itself is not easily definable, and its legal framework, if any, is even less so. The market grew rapidly without the assistance, or burdens, of an integrated or even coordinated set of laws. It is an international—or multinational, or transnational—phenomenon, but it is regulated only to the extent that the Euro-dollar activities of the institutions operating in that market—the Euro-banks— are subject to regulation and supervision by the national jurisdictions in which they operate."
[0] https://alhambrapartners.com/2021/09/17/dollar-warning-updat...