(Realized that I never replied to @disaga87’s question)
For me the conclusion is that I will not invest in a hedged ETF (see also this recent post):
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The cost of hedging seems related to interest rate spreads, which is ~3% p.a. between US and CH at the moment. This means that the unhedged fund beats the equivalent hedged fund unless CHF appreciates 3% against USD every year.
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There isn’t really an FX risk to start with when buying ETFs of global companies. The stock prices of these companies in various currencies will have factored in their global performance which they themselves internally have hedged against various currency risks. So when I buy a world ETF in USD and a world ETF in CHF, I would be more or less able to sell the USD stock and convert the cash into CHF and land on the same figure as the CHF ETF is worth.