Does the area where I got fillers become more natural over time?

Compared to when you first got the filler
I saw a comment saying that the shape becomes more natural after a little while.

I wonder if that is simply because the swelling has gone down.
I am wondering if this is happening as the filler itself settles.

Especially facial fillers
I think it will bother me every time I look in the mirror for the first few days.

I wasn't satisfied right after the procedure, but
I'm wondering if there are cases where it gets better after a few days.

Are you saying not to judge the result from the start?
I would also like to know if this is the reason.