Well, desu, I actually think it fell apart when S;G was milked nostop with re-releases of shit we've already seen and other bullshit, non-canon alt-timeline one-offs that left everyone unsatisfied,
Instead of cute shit like Mayuris life, story and thoughts in the SG worldline knowing she lost to Kurisu, or Kurisus and Okabes relationship furthering (the cancelled LN was a travesty in this regard. Undoing the true end of the VN with them floating further apart? BULLSHIT
) or my absolute favourite:
Smol child Suzu being outfitted in maid clothes by her otaku parents.
Child Suzu learning martial arts from Nae-nee-san.
Suzuha, the adorable tomboy, going to school. Driven there by best uncle.emotional scenes with Suzuha and Okabe, with Suzuha seeing nightmares of past time lines/Okabe having flashbacks and the other comforting them, saying it's ok now.
That they've reached it. Steins Gate.