What are these little white things in my filter?!

[FreshWater1]

1https://youtube.com/shorts/Dcev6KjVcBE?feature=share

Yes I know the bladder snails are everywhere... don't worry I have one assassin snail

I was doing a water change and turned off my filter because it was scaring da fishys

I looked into the filter to see how many snails had gotten in and what they were planning and hopefully you can see through my video quality the little white dudes jumping about and clinging to the walls

You guys know what they are?