You just won’t see the tax withholdings on your statement because it shows up on theirs.
Also I keep money in index funds even if I don't plan on using that money for retirement. (e.g. downpayment on a house, saving for another large purchase, financial buffer, etc.) I also keep money in index funds that are in regular brokerage accounts because 401k + backdoor roth ira isn't sufficient for retirement if you make $200k+/yr. (True for even lower amounts too but whatever)
I wish.
But no, dividends are taxed:
https://www.belastingdienst.nl/wps/wcm/connect/bldcontentnl/...
What you probably miss is that dividend tax for non substantial holdings (less than 5% of the total stock) is withheld before being paid out.
Pension funds, ISAs in the UK, etc etc; most countries have something similar. The vast majority of individual savers will not exceed the limits placed on these accounts.
I wouldn’t be surprised if US retirement savers have the same issue.
While dividends from the etf are tax-free in a retirement savings, the dividends from the euro company are first paid to the etf, and the euro company still does tax withholding. From their point of view, they’re not paying out to a retirement fund.