That’s in the center bro I promise you a lot of that stuff on the top of your pot is this
I’m not saying it’s impossible that they’re some roots but if you have roots coming to the top that means you’re not saturating your pots through fully so the moisture is sitting at the top not the bottom too frequently. I’d put her in a dish/tray/bowl and bottom feed her at this point anyway and it helps keep fungus gnats away. It could even be caused by “heavy watering” aka throwing the water into the pot rather than it gently flowing that can also uncover roots n shit
I still stick to those are fibers and not roots tho mate