I can try, I guess.
To begin with, I’m not one of the folks that thinks the original Blade Runner is “the best scifi movie, ever.” (Sorry; that title is reserved for the original Alien, IMPO.)
I thought the original was cool, dark and creepy, but not the best ever done.
Then there’s the fact that I’m not really feeling future dystopian nightmare films, in general; chalk that up to the dismal present day reality, but I really miss the hopeful optimism that used to accompany some movies about the future.
Perhaps it’s the apparent lack of any real societal progress in the face of immense technological advancement; by 2019 and 2049 respectively, our species has advanced enough to establish colonies off-world - but it still has not evolved enough to come to the realization that slavery is always wrong no matter how big the ‘economic upside’ may be, nor has it moved beyond the sexual exploitation of women, which seems gratuitous and totally irrelevant to the plot progression.
Lastly, there’s the fact that I didn’t feel any kind of connection to any of the characters whatsoever; not K, the replicant protagonist, not his boss, not even Derkard himself, once he finally appears on-screen 2+ hours into the film.
I just didn’t care about any of them; and that’s a huge sign of bad storytelling when the audience can’t relate to the main characters.
Long story short: the best thing I can say about BR 2049 is that the cinematography was beautiful.