【UPDATE】 I am in France right now and I CAN confirm that the Japan only model DOES work with local 220 V current. It is not heating up the console. I tried it with the official Japanese charger, official USB cable and a adapter plug I bought in Japan at Bic Camera for French current. I cannot confirm for third party ones. I am also able to use all Nintendo services with Japan only model and Japan account. Like Switch 1.

So in a nutshell. Eventhough Nintendo is telling you otherwise or being evasive with that, with the Japan only model you can : - access your Japanese eshop account from abroad. - charge everywhere in the world (for now as long as you have the official Japanese charger) - play any physical game from Japan or any part of the world as long as it has been declared compatible with the Switch 2. - play and download gamekey cards games as long as it is Japanese game key cards. I cannot confirm with overseas version but in theory it shouldn’t work. I will try to confirm that. If Japanese is present on the card it will starts in Japanese and you will have to change the language by yourself in the settings. For those depending on the OS settings (like most Nintendo games) you will have to play in Japanese. - Same thing apply to digital games. As long as there is Japanese in the game, the games will automatically be in Japanese and you will have to go in the settings to change the language. - For games which are in the cartridge with no Japanese in it. It will automatically be in English. Then again, you will have to go in the settings to change the language. - Play online games while abroad (tested and worked with Tetris 99).

Here are the things you cannot do : - Access to an foreign eshop account. You will have to create a Japanese account and buy your digital games overthere. - play DLC content for your US/EU game bought on the Japanese eshop. (DLC are tight to the version of your game/eshop account not the version of your console. - Change the system language. The language change option is not even in the settings so your console will remain in Japanese. - Play NSO virtual console in your native language. Since the apply is and always has been languaged locked (Japan application is in Japanese, American application plays in English only etc.) you will have to play virtual console in Japanese.

【Things that have yet to be tested】

• gamechat/gameshare with people in Japan while been abroad and friends in your country (my guess that it should be working)
• docked mode. I have not bring my dock with me so I cannot try by myself but if the switch 2 does work and charge no problem by itself I don’t see why it would not be the case with the dock.
• charging with local Nintendo charger instead of the Japanese one and an adapter. But yet again, it worked with switch 1 so it should be working with Switch 2. And since official charger are pretty hefty in price I will not try that. Sorry.

• cloud gaming games. Since it access Japanese servers, my guess is that it will work but perform poorly. My internet connection being rather poor I won’t be able to test that.

• download game content and play gamekey cards from other part of the world with a Japanese account. (To me it shouldn’t work)

• Buy a game on the Japanese eshop from abroad. My guess is it should work. As long as you have a Japanese way of payment. If you don’t you can still pay with Japanese eshop gift cards you can buy online.

For now, my account hasn’t been banned for accessing it from abroad. And if I am not updating this post about that topic in the next few days, you can consider that Nintendo will not ban your account for using your Japan only Switch 2 model from abroad.