Actually both are true, glucose and fructose have way different biochemical impact on the both. For starters, only 20% of glucose is metabolized by the liver, rest goes to muscles, brain etc. While fructose completely goes to the liver, since muscles and brain cannot make use of fructose directly. Another effect fructose has is that it sort of suppresses ghrelin (
https://en.wikipedia.org/wiki/Ghrelin), the hunger hormone. So it is highly likely that you will not feel full when you have food with fructose. The advantage of having sugars (especially) fructose in fruits is that due to fibers you tend to feel full faster. Fiber also helps in ensuring that fructose is releases at a slower rate vs. a can of soda.