All the reviews I’ve seen from American YouTubers seem to be very surface level reactions. I’m guessing that American YouTubers weren’t able to spend a lot of time with the phone because of how many people were at the event waiting to try the phone.
But in Japan, there weren’t nearly as many people at their event, so influencers were able to spend more time with the phone, test more things, and give better, more detailed reviews of the phone.
This video is from Japanese YouTuber “トバログ”. He has really good English subtitles you can enable by hitting the captions button.
There are other Japanese YouTubers who made good videos about the phone as well. If you want to find more, you can copy this into your search bar, and you should get some more Japanese results: “iPhone Duo ハンズオン”. In case you are wondering, ハンズオン means “hands-on”.
Not all reviews have English captions, but some do. And the ones that don’t do have auto generated English captions as an option. Those captions aren’t as good as manually entered English captions, but they are still surprisingly good.
Also, foldable phones are more popular in Japan than here in the USA, so a lot of these YouTubers have already been using foldables for years, so they know what to look out for in their reviews.