in these days and clear for everyone to see, any state guarantees are gone faster than you can count to 3.
Switzerland isn’t safe nor private.
It is/was a direct democracy, in 2018 the electorate voted to have restrictions on bailing out banks - to be illegal basically - the state in discarded that when CS went under quicker than a pole dancers twirl.
In addition since Switzerland decided to void its history of being a state that is neutral with the Russian/Ukraine war the safeguards for wealth preservation there also disappeared.
If looking for something akin to what Switzerland was in a manner of speaking but following international laws/agreements but predominantly trying to be neutral - that in my opinion would be Singapore, unlike Switzerland who’s geographical positioning during WW2 and prior wars worked in its favor - today being a hindrance as a land locked state - in the Centre of the the European Union - who it’s reliant on for trade and labour, Singapore still is very much a important trading route - in addition its ability to protect its sea ways (check out their air force/naval) means it can’t easily be bullied.
Singapore has a a huge set of industries and these industries are born around commerce and finance - as well as its trading post meaning it works with East and West.
It has a strong currency which it manipulates to be within breath of the $ but unlike the CHF which is debased based on the activities of the Government's, and tied to the demographic decline in Europe - reliant on energy issues within the European land mass - Singapore purposely manipulates its currency, has a form of common energy security, youthful demographics within the ASEAN zone it operates, good checks and balances on the state, privacy enshrined, access to all markets and a non debt based economy if you dig into the numbers properly.
Some people say Dubai, Others British overseas territories, Lichtenstein, Swiss etc
I’d say the safest place whilst holding a currency that can rapidly be de-pegged from its manipulated peg to the $ whilst having a rule of law and a eye to both sides to rapidly move wealth if exposed to geopolitical collapse to be Singapore