Comment by TeMPOraL

Creases are overblown. Z7 Fold had a somewhat noticeable one, except... I stopped noticing it after first few minutes of use, and only realized it's there when light reflected off it at weird angle. Didn't get worse over a year.

With Z8 Fold Ultra, the crease is much more subtle and flat enough that I sometimes don't feel it while sliding my finger over it. Doesn't show signs of worsening over a month of rather intensive use (average 27 folds per day, yes there's an app that counts it, and it's underreporting because it took me two weeks to remember and exempt it from background activity limits and battery use optimizations...).

Point being, crease has stopped being an issue for actual use experience at least a generation or two of foldables ago. It's only something you worry about before purchase.