There's no doubt that your bike is higher quality than the Decathlon one, but the average customer doesn't appreciate how well engineered it is or how many patents (??) are involved.
No issues so far. Internet reviews (https://www.decathlon.fr/r/velo-pliant-fold-500/343354/undef...) are quite positive as well.
I've had other Decathlon bikes when I was a kid/teen, I don't recall any issue either.