I think all modern cars are incredibly complex, especially in their "electronics." The mechanical components of cars are quite reliable (and yes, those parts do sometimes fail in all cars), but it is usually the electrical systems which fail in all new cars. And can be tedious to diagnose, and fix. On our two new cars, one an '18 QV bought new, the other a Jaguar Pace SUV, we are still learning how to use their features, and if something doesn't seem to work, if it us us or the car's electrics. On my my wife's Pace, it took several trips to the dealer to have them successfully up date the Apple Play, which on my Alfa sometimes momentarily drops out. And we can never get the foot sweep under the Jag's rear bumper to open the hatch consistently. And even reading the owner's manual, thus far cannot get the electric hatch to let us adjust how high it will rise. Us or the car?
Long decades ago, when cars were simple, they died from rust, or worn mechanical parts. Now-a-days, discarded cars will be pristine with failed electronics.
If a person wants a vehicle to run "forever", get an older pick up, they go many hundreds of thousands of miles. My brother in law's 350K mile '95 Ford 150 is rusted out, but runs fine and does what he wants it to do. Of course, no radio or working windows, and jury rigged heating, & with no AC. But goes down the road pretty as you please. Well, actually, not so pretty, but makes it there and back.
On this and other forums, you will find owners like me, who at 19K miles love their trouble-free cars, and others who leave the brand out of frustration. Years ago it was said to never own a BMW out of warranty, for instance. My son's Porsche had a failed engine, and his new Toyota Sequoia dropped a valve. As for Alfa, I suspect they are neither better or worse than other brands, and some of that is just owner luck. As for buying a "lemon-buy-back", I think the law relates to how long and many times a repair was attempted and not whether the repair was finally resolved or not. So such a car could be fixed fine for its next owner, after the former owner was just too frustrated by the time and attempts to finally fully resolve the issue.
It just took three trips to the Mini dealer to finally fix a dash warning at start up on my daughter's Mini. Turned out Mini bulbs only give the ECU an "all clear" signal with Osram bulbs, with a brass tip, not an aftermarket bulb with a silver tip. Really? A silver tip on a working bulb throws an obscure code?
My daughter just bought a new Audi Q5, and with all the incredible features of her new car, she bought a long term warranty too. Just in case....
All the best....NV