I personally dont see a huge use of the IGT when the cutscene time cannot variate so the time from beginning to the end is not based on rng so the IGT only makes it complicated

the opening cutscene's length does vary, there is a method to almost skip it entirely but it isn't counted in the IGT.

But rn it is that the timer starts when the player begins to move so that doesnt even matter right?

I agree with Ken I don't think the IGT is required especially with the level intro skips.

I now agree with you, tbh when I was first making the speedrun.com page I was trying to mimic the Karlson Speedrunning page because I was a speedrunner for it for a while. I'll remove IGT until an Autosplitter for Rewinder is made.