If I dissolve the fillers, will my face really return to its original state?

I had fillers injected a while ago, but as time passed, I didn't like the shape, so I am considering dissolving injections.

But I'm worried because I've heard that even if you dissolve the fillers, your face won't completely return to its original state.

Some people said that after dissolving it, their hair returned to its original state cleanly, while others said that the volume was lost, making their skin look sunken or giving the impression of sagging.

I am particularly curious about the changes after dissolving nasolabial fold fillers, lip fillers, and chin fillers.