Folders in After Effects timeline

Somehow, the basic elementary digital concept of objects and their hiearchy, with originals in a library, and referenced instances is too difficult for Adobe to implement in any GUI...

How is this not a thing yet

Instead of us grouping them into a composition, you may give us the option to group them like how we group objects (in Adobe XD for example) and layers together, and then if we duplicated them and use the second duplicated group to do other animations or changes, it wouldn't affect the first group together.

I'd like to create a bin inside my working composition. That way I could keep things organized without precomposing, which is more time-consuming. I would like to have a bin which would open bellow, not in another tab or window. It would work similarly as a layer tab in Adobe Illustrator.
Please make that future available it would save me so much time while working. I also don't it is hard to implement it.

Create bins/folders in layer panels. It'll be much easier to work on big projects

This. Will never happen.

YES, folders in timeline PLEASE

This feature is actually so requested, but its broken in a lot of smaller request like Grouping or TImeline folders or other keywords.

Would be nice to have this feature

Please, Adobe! Make this happen.