[Kirby64]

Fake leather has a wide, wide range of quality. Polyurethane faux-leather used in many automobiles these days is considered to be superior to leather in terms of durability and longevity. Take a look at old examples of MB-Tex, which Mercedes has been making for ... 60-70 years by now.

Similarly, plenty of leather that will disintegrate and flake into trash or crack and peel, especially if not taken care of well.

[stavros]

My Mercedes "leather" seats have flaked in ten years, almost the entire seat area (where my butt goes) is now showing the white underneath.

[Kirby64]

Plenty of real leather seats that have done the same. I had a 10 year old real leather Volkswagen that did the same myself.

Meanwhile, I have a 11 year old Vinyl “fake leather” car with no issues, and a 8 year old car with PU pleather that looks nearly brand new. Ironically, the steering wheel is made of real leather and has started flaking in a few small corners.

I’m not sure how any of those anecdotes proves which is more durable or long lasting than the other.