In my extended circle of acquaintences and colleagues I know around eight people with folding phones. I have seen ONE of them ever use it open - even in situations where you’d think it’d be great, like sitting at the tables in the office kitchen at lunchtime browsing, almost never used unfolded.

It seems like it should be a great idea, but for the majority of people the majority of the time, it appears to be an otherwise normal phone that’s just twice as thick as it needed to be. One of the owners of these devices - who had it bought for them rather than choosing it themself - made that exact complaint to me, in fact.

That said, don’t let this put you off. If it’s a thing you think you would like, the technology has definitely progressed to the point where the more glaring issues (of reliability, mostly) have been worked out. But definitely spend some time playing with one in a store before committing if you can.