I love my Fold 3. Only real complaints are how many apps are not built to support the front screen’s thinness. It was the most expensive phone I’ve ever purchased even at 50% off used (around $900), but for the amount of hours I use it, it seems justified. For maps, photos, and reading, the inner screens are awesome. I mostly use the outer because most things do not need the full size. Can’t imagine it without the outer screen. Durability not an issue so far, whether that’s waterproofness, sand in the fold, or the crease.
I’m on my first non Google phone, starting with the Nexus 5. I currently have the Z Fold 3, bought used for about half MSRP. It has so many good things that Google failed to do, while also missing a lot of things I loved about the Google phones. The Pixel folder may bring me back if it gets cheap enough.
I had the Z Fold 3 and now the 5. It’s great. I’d happily move to another company’s if they were just as good or better, but also cheaper. The price tag is the only issue and I managed to avoid the full price twice. First by buying a used one at half price, then trading it back to Samsung for any $800 off the 5, which was a great deal.