I use the Fold 4 and I love it. I don’t think I could ever go back to using a nonfoldable. I never notice the crease during use unless I run my finger across it. In terms of durability, it’s been great. I dropped my phone many times onto concrete and no issues at all. The only problem I have is with the screen protector for the folding screen. Mine is already peeling after around a year of use and it’s a pain to get it replaced. You can’t really do it yourself and you need to make an appointment at a repair shop to do it. At least it’s free.
The pathfinding for the pals at my base improved from what I’ve seen, but there are some alpha or lucky pals that get stuck behind walls.