I don't think you can assume too much about previous faults carrying over as I expect the designs change radically over a few years.
I've owned a few Motorolas and my first mobile was the one on the left. Someone I worked with gave me the flip phone when I was going to the US and mine didn't handle the frequencies used there. The Benq was my first smart phone running Microsoft OS. Some of these were used by other members of the family.
Nice collection! I keep all my old tech too. I think Motorola was my first too. I had the brick...
I miss the old flip phones. Honestly, if it wasn't for crypto, I'd probably go back to my flip phone. The novelty of carrying a computer around in my pocket is starting to wear off.
No doubt, they tend to fix issues pretty quick these days. A competitive market keeps them all honest too for the most part. It's in their best interest to get issues fixed quickly.