Digimon Adventure: 20 Shuunen Memorial Story

Episode 1 was a decent look into what Sora's been doing and how she's growing into her own person.
Episode 2 should have been in the Kizuna movie, it's very rare for the Digimon to seriously talk among themselves and it works wonders for their character to see them come to terms with what they most likely accepted at that point would end up being the climax of the movie.
Episode 3 Showed how Joe's grown up despite what Gomamon thinks at first which feels bittersweet because it shows how Gomamon is no longer keeping the one keeping Joe in check, kind of strangely like a ... mother watching their kids move on and live by themselves.
Episode 4 was a fun comedy one that showed us the OG Adventure Digital World and was just a cute bit of the Digimon goofing about as well as a neat call back to when Daisuke tried to get Veemon to evolve in 02.
Episode 5 is a comedy skit featuring Pumpkinmon and Gotsumon which I'll treat as non-canon because it retcons Pumpkinmon and Gotsumon's death in Adventure as them faking their death.

Quick note: I've been a Digimon fan since I was 7 years old. I'm 28 now. I've watched all Digimon media released up to this point and I've played a few Digimon videogames as well. I'm currently watching the ongoing Digimon Adventure 2020 "remake".

Finding this short series was hard enough but it's worth to watch them. You get both comedy and character development, insight and growth.

As far as animation goes, it's not the strongest aspect of these episodes but I've seen worse. Same goes for audio: nothing to be amazed by nor disappointed about.

In conclusion if you enjoy the Digiverse, you should ... definitely watch these 5 short episodes