Ring of Metal Fleur Skip
From Horizon Speedrun Wiki
General
The Ring of Metal (RoM) Fleur Skip is an obsolete skip in the "Revenge of the Nora" main quest. It saved a few seconds by RFS'ing at the start of the cutscene where the Nora storm into the RoM. This skip is not used because this save only triggers if you do the quest in the intended way, which is no longer done.
Video of the skip (Note: it is possible to RFS way earlier, but this wasn't done due to playing on PS4 HDD):