I posted this a while ago, so I'll paste it here from my old comment.
I bought a Z Fold 2 in 2020 and still use it today. Battery life is great, screens are still great (both outer and inner). I always have a cheap case for it that covers the front screen. I have dropped it twice outside on the concrete ground and the cheap case broke, but NOT the phone, so I just bought another case each time--to me, that's what the cheap case is for. I really like it and will probably get another version at some point, but here are my main takeaways:
Outer screen is very slim (think almost TV remote-sized). I have gotten used to it but God forbid you hand it to someone else to type on, they always say it's too small
It's too long for my pockets, but I'm a woman that wears women's clothes, and our pockets are too damn small for anything, so I have to carry it in my purse
The screen protectors it comes with do start to fray at the edges over time, but I have never had it bubble up at the folding point/crease on the inner screen
If you are not known for being delicate with your phone, this is not the phone for you. If you work outdoors regularly, have a tendency to drop your phone regularly, etc, don't buy this
It's expensive
Not all apps are compatible with the big screen so sometimes you're stuck with the small screen view on the big inner screen
Having a portable tablet is great! I got rid of my tablet when I bought this phone and have no regrets
It's great for driving when using Google Maps or whichever driving app you choose. Having the big screen makes it so much easier to see the directions
Any video looks better on the big screen
I have used the big screen to view maps I downloaded for hiking