I had Claude analyse my software versions according to your question: Your version Software version of the service provider: SAOMC_SM-S938B_OXM_EUX_16_0040 EUX/-/EUX/EUX This is the EU version (EUX) - not the CH-specific version. What does that mean for you? No problem. As I said, the hardware is identical. And specifically to your questions:
✅ Samsung Wallet - works in Switzerland ✅ NFC - works ✅ Play Store - normal, no restrictions ✅ Android 16 / One UI 8.0 - you are even very up to date ✅ Warranty - applies in Switzerland
The only theoretical disadvantage of the EU version compared to a Swiss version would be that software updates sometimes arrive slightly later - but in practice this is hardly noticeable and your device is obviously up to date. In short: You have a perfectly configured device, no need to worry.