Thinking between this one and a full face fat graft.

I have some questions:

I read the one review where girl mentioned after some days it didn’t hold as well.

What are considerations to having to stay?

How often might it need to be redone over time?

Does it also help to reposition fat similar to a graft ifI have concerns about hollowing under eye and growing nasiolabal folds?

Can it be done at same time as eyelid surgery, since it also impacts the eye?
Thank you for any info!