Maybe the build quality is a bit worse but it’s not bad. My x280 is doing great and I would absolutely not replace it with an older machine (even if that machine had a think light)
And I much rather have soldered components from 2018 (or something) than non soldered from a decade ago
But sure, there is nothing wrong with running old machines yourself. I just wouldn’t recommend it to people that ask for a laptop unless they specifically request it.