What a game design! I have never seen an idea like this before, even though I have played dozens if not hundreds of match3 games.
It would be awesome if there was gravity between the balls. Both between individual entities and between clusters. Right now you get situations where you split a part off and it just moves along with you on its own. I think that might also be why matching a chain of balls sometimes fails right now despite them visually looking connected in a group of four or five.
But overall, the game is absolutely excellent! Well done! ❤️