It didn't tell us much to be frank, but there are a few things that were pretty interesting;
- 15yo Bunnyx stated that the villain was going to reshape the Universe in a way no one’s ever seen before (this can't be compared to Cat Blanc's because as I said, it was 15yo Bunnyx that made that statement and it was 25yo Bunnyx that witnessed Cat Blanc's work.) She also confirmed it would be the end of the Universe.
- The only visual difference is when Cat Blanc threatened to destroy the universe the windows glitched and Alix was slowly getting erased, in the London Special every window was disappearing one by one and immediately caused the extinguishment of both Alix's from the future.
- Since if every single window in the Burrow was destroyed (which would presumably mean every point in the timeline), 15-year-old Alix should have been affected too, but she wasn’t. This creates a blatant paradox.
This also completely disproves the theory that every window is a different space-time continuum, the destruction of all windows would mean that every single universe and timeline had been erased. In that case, 15-year-old Alix should have been erased along with the other versions of herself, because her existence would rely on the survival of at least one timeline or space-time continuum. The fact that she remained untouched while every window was destroyed suggests that the destruction did not affect her universe in the same way, implying the windows are not separate universes. The future versions of Bunnyx disappearing first, while present-day Alix remained unaffected, indicates that the Burrow windows likely represent past, present, and future moments within the same universe.