someone wanna run these speedruns with me so we're not doing it alone? Kinda like a competition between each other?

But this all relies on mods, and they don't seem to be too active

Well then in that case, then making the new Stone Ocean page apart of the run would be the best option, considering you're the only person who has ran it and is going to completely nullify your last run by running it again.

But for Old File on the other hand, the same change I recommended before would probably have to be put in place, that being just having 2 categories, because I know that the one run for old file does NOT include the new Stone Ocean page then making it unfair for any new runner

I can hardly beat it now while skipping over the new page

In my expert opinion (I'm no expert) I'd say just have two categories, one without the new Stone Ocean panels, and one with. Since you don't need to beat it to get the credits, then it's technically not a part of the run, basically a side quest. I think it would also be unfair to any runner who wants to do this now and just physically can't get the record because a whole new tab was added.

When I would run this, I would completely skip over the 2nd tab, because I figured that would just be fair.

Or alternatively maybe consider them one, where it doesn't matter what tabs you beat under Stone Ocean, as long as you beat the correct amount. Just throwing out some ideas.