I just watched a video on the ZFold 3 and yeah I'm not tempted in the least. There are really two drivers for this to me. First is the size. Now don't get me wrong at certain times it might be nice to open up that big screen and watch something but to me that's all it would be good for. It's not going to enhance anything else I do on the device so the bulk isn't worth it to me. It's like the Note series for me, I have no rational or useful reason to need an S-Pen. More expense for no gain of function. My second reason is the screen is super soft. If you've ever watched JerryRigEverything do his durability tests, a screen that scratches at a level 2 is not my friend. It even warns not to use your fingernail. So yeah no temptation at all. I feel like saying that if either one of those wasn't true I might consider it but the truth is both of those things would have to change before I would even bring that consideration in out of the rain.
Note I didn't even mention the cost of the device. My interest died long before I ever had to even think about 2 phone price tag.