I encountered a crazier one recently: the app will just refuse to start if you block the ad servers they’re using, showing “connection unstable”.
Went to connection history and saw lots of requests to ad servers, unblocked them and I finally started the app without error, but yeah I did see ads too.
I deleted the app afterwards.
eSIM is really hard to change device in Taiwan due to government rules:
So physical SIM is more flexible here, just don’t lose it, or you need to go to police station before you can apply a new one.
Latency issue, in some use cases it’s not acceptable to have 0.1~0.3 sec lag, like racing games or rhythm games.
(Yeah, I know there are some wireless protocols to make latency shorter, but it might cost a lot to buy a supported headphone, and it’s still useless if the phone doesn’t have proper protocol supports.)
Non-JP version games “might” work, but will force to shown in Japanese (if available)
Japan-only version: Only support Japanese language, JP Nintendo account, and probably Japan payment methods for shopping.
Multilanguage support version: Doesn’t have those limits, but it’s more expensive.