I just want to pop in and say, Kingdom Hearts has been a constant in my life since I was a child, and the mysteries have never yet failed to have me so emotionally invested (including all the gacha nonsense). I've never fallen so deeply in love with a video game series as much as Kingdom Hearts.
...until I played FF7R. Fwiw I've never played OG FF7 but I have a general awareness of the story. Rebirth especially really solidified how much I love these characters and the both the old and new mysteries unraveling. I'm at endgame content in Rebirth right now and I'm taking it much slower because I know I'll be sad when I finish it.
I totally understand the jealousy. I wish KH got this much love and attention to detail.