What I'm trying to get at, is that there are tons of videos, posts, memes, etc., about Germans or Finns for example, saying something like "there is nothing to complain about" is high praise. I'm sure part of this is over generalization and playing up the stereotype for the content.
But I'm from a culture that leans more towards the opposite, and uses euphemisms for criticisms instead of compliments. But we definitely will note our displeasure with something. What I'm about to say depends on the context (is it store bought, something you chose or made, are you a guest at some one's house). But while the words used if you don't like something will usually be polite, especially if it is food someone made, in-between the words used, the way it is said, and non-verbal communication I would pretty easily be able to tell if I should never make that dish for the person again, if they thought it was okay and maybe if someone else likes I'll make it when they are over, or if they really like and I should go out of my way to make it when they come over.
Like I have received and given a spectrum of feedback from horrible to amazing. So while feedback might all sound from at worst neutral to overly positive to outsiders, in reality people from here could distinguish terrible to bad to neutral to pretty good to great to amazing.
Is it the same in countries with a "lack of compliments"? Like you have the whole spectrum of feedback and it just sounds neutral to overly negative to outsiders? Do you use tone and non-verbal communication to widen the spectrum of feedback and outsiders just don't pick up on it? Or does your feedback (to use the same example spectrum), just go from terrible to bad to neutral to pretty good?