How to tell if objects/bones/vertices are hidden?

I often use the H key to hide objects, bones, and vertices and then Alt+H to unhide them. However, there are times where I’m looking around for something and I can’t find it…and after five minutes of searching, I realize that the objects/bones/vertices I’m looking for are actually hidden, and Alt+H unhides them.

Is there any sort of indicator in Blender that shows that there are hidden objects/bones/vertices that could be revealed by pressing Alt+H?

If not, is there an add-on that displays this information?

Hey, ‘Objects’ & ‘Bones’ visability in the ‘Outliner’ - that ‘eye’ icon, verts though , there is not.