I just spent the last few weeks devoting my gaming time to playing quality fan-made Superworlds in Mario Maker 2. I've been playing the various iteration of 2-D Mario games for 35 years now, and you would think I'd be tired, but I'm not. The Mario "universe", the tight controls, the familiar and not-so-familiar ennemies and sprites, the endless combinations of gameplay ideas, to me it's still as fun as ever.
I would love a new 2-D Mario game, but NOT in the NSMB style, because it's been used in too many games since the first one on DS. I'm just tired of it.