In what cases do we use Add to Collection and Invoke Method-Add

I would like to know what is difference between Add to Collection and Invoke Method-Add, I see a similar question was posted below but there wasn’t any answer

Beginner - Invoke Method (Add) vs Add to Collection - Learn / Academy Feedback - UiPath Community Forum

How do we decide upon using each of these while dealing with collections(Arrays, List and Dictionary)

Hey @mcashwin

Both are actually same at the backend.

Visually you have some difference, that’s it.

Thanks
#nK