Saying Digimon Adventure Movie: Last Evolution Kizuna is bad is putting it nicely. Considering all the weird things that happened with Adventure lately with the addition of the Tri movies, it creates a bunch of movies if those "Movies" or "Specials" are counted as canon to this movie as many things are unexplained like why Genai is a good guy all the sudden.

This movie also seems not to know what exactly it wants as it seems like a love letter at first going as far as showing the 02 kids and giving hints to their dreams that were shown at the end of Digimon Adventure 2002. But then introduces the concept of Digimon disappearing once the kids become "mature?". It isn't really clear but your partner disappears and that suppose to be the emotional conflict of the story with the main antagonist wanting to let the Chosen Children live forever in their small bubble being always together with their Digimon.
However, the story conflicts with the final goodbye at the end of Digimon Adventure 99 where that concept was explored and the children back then accepted that they won't see their Digimon ever again. So Kizuna feels more like a Digimon Teenage Midlife crisis if anything. The writers probably think they were clever by doing that and handled it god awful.

The movie also shows the kids as Digimon capture police solving issues as a secondary job so to say. Ironically they are so bad at it that they look far more incompetent than they did back when they were a kid. The amount of property damage and how they barely managed to save people from just 1 Digimon is almost comical. And the fact they have to go through all the trouble to open a Digital Gate to bring that 1 Digimon back is far more tedious than the options they had back in 02 where they could easily open a portal with a laptop anywhere and any time. No need to have some stupid countdown to drag out the fight.

The fight in the movie, at least in the early part, was beautiful. Really well animated including the evolution animations and themes. The animation and artstyle are really beautiful, but it just doesn't feel like the Digimon Adventure artstyle but like a generic anime you have seen a billion of times.

Toei being Toei also nostalgia baited the hell out of this movie with Greymon vs Parrotmon, something referencing the best Digimon Movie Our War Game and god knows what else.

If you like pretty colors and need a Digimon Adventure fix, you may like this movie. It has also a hot waifu material if you are in such things. But if you want something with depth that doesn't feel hallow similar to how Tri, you won't get it in this movie. It can't even keep up with Adventure 02's quality. And fails with its message of "growing up" as it feels more like "Stop watching Digimon and get a life" if anything.