Yes this is obviously the foundation of winning poker, and the most typical definition of a "fish" is someone with a much to high VPIP. And this is because, if your range is to wide preflop, this carry over to postflop, and you either end up folding to much,
bluffing to much or getting to showdown with a weak range, that will lose to often. And you also create more reverse implied
odds, where for instance you flop top pair, but someone else have you outkicked.
But it is a bit more complicated than that, since ranges are dependent on your position and previous action. For instance you are actually supposed to defend anything but offsuit junk, if you are in the big blind and face a small raise from late position in a game with antes, as will often happen in tournaments. And if you dont do that, this is also a problem, because then you will tend to get blinded away. So instead of "play tight" I would say, that the advice is to learn GTO ranges preflop, and then stick to them, unless you have a good reason to deviate.
But I will admit that for beginners it is generally worse to be opening hands like J4s from UTG than to fold them in BB facing a min-raise. So maybe I can go as far as to suggest learning to play tight first, and then open your range up again later, when you have more experience postflop. This keep your decisions more simple and reduce the risk of making expensive postflop mistakes.