I've laughed plenty at TNG bits over the years. They did struggle with any episode designed purely to be comedic, because the nature of the narrative did not lend itself to that very well. As a show, it took itself way more seriously than TOS overall. These characters are ultimately not funny people, most of the time... except perhaps Data, unintentionally, whose naivety tends to amuse his mates.
As for laughs however, John Delancey had absolute bangers. "Oh, very clever, Worf. Eat any good books lately?" or Data reading "Ode To Spot" while Riker dozes off. That's gold. Lwaxana brought a great deal of comedy into the show. Also, Data in "In Theory" asking each crewmate about dating & Picard sidesteps him with "I would be delighted to offer you any advice I have on understanding women. As soon as I have some, I'll let you know."
Their best humor was organic, within the normal course of their interactions, which is why creating whole premises & storylines & episodes, with the express purpose of being comedic, seemed in contrast ... like inauthentic artifice