Okay, so this is MUCH shorter than 1.5+2.5 ReMIX. You're getting 1 game... and imho it's a game with tons of mechanic bloat. The other "game" you get is a glorified tech demo, you can beat it in a few hours. The last thing you get is a movie.

Well why am I recommending it? If the bundle is on sale, this package sort of ends up free, and it provides crucial story context. If you watch a summary on youtube, you'll probably be ready for KH3 and you can skip this.

i love balloons

A good port of the collection onto the PC -- if you played the version on the Playstation you'll know what to expect.
I also played on a SteamDeck the entire time, and I only ever had one instance of crashing that wasn't specifically Deck interference (it has a habit of screwing with your game if there's an impending update). DDD runs smoothly, but as one would expect 0.2 really push my Deck to its limit with all the rendering each level has to do. That ended up draining the battery quicker than most other games, but given that it's a fairly short game, I didn't have trouble just playing it plugged in. All in all, it's a good port, and it was nice to have WORKING ACHIEVEMENTS to commemorate my hard work!!! 🙃