Yes, I get to play with the coolest and best phones for a living, but I'm very picky (and cheap) when it comes to upgrading my own phone. In fact, I've been living with the solid iPhone 12 Pro Max for nearly three years, and only recently has it started to show its age.
For example, I've noticed that apps are sometimes slow to load or crash inexplicably, and while the battery life has remained strong, it's not as good as it used to be after several iOS updates. But my biggest complaint is the camera. It's good, but I've been jealous of the quality offered by the 48MP main sensor on the iPhone 14 Pro Max. Though not enough to upgrade.
