I will likely try the OnePlus 13 when it comes out and trade in my S23U. Depends on the trade in amount though. The OnePlus open really peaks my interest though. I was browsing their website yesterday and I could trade in my S23U for $1000 for the Open and get the OnePlus watch 2 for free. If I wasn't still paying on my phone and Galaxy watch or if I was closer to paying them off, I'd totally do it.
I bought a Lenovo M10 tablet and it's only for watching video content and browsing websites where I need a bigger screen. But I'm sure the OnePlus Open could replace a phone and the tablet. I wasn't too impressed with the Galaxy fold as the outside screen is too tall and narrow.
My only concern with the open is the day to day usage as a phone. I'm concerned that the extra thickness and weight would be cumbersome over time. I use my phone way more than my tablet.