Foldable smartphones have reached their fifth major generation, as heralded by Samsung’s Galaxy Z Flip 5 and Fold 5...
For me it's definitely the durability concerns. I've valued my phone's water and dust resistance since getting an ip67 phone years and years ago. My brother had a flip and a grain of sand in his pocket got under the display; when he closed the phone the display died. And they expect me to pay more for the privilege.
The question wether flips/folds are gimmicky or useful is a very personal one: I.e. for me the foldables seem excessive and flip phones finaly a way to get smaller phones.