Under-eye Fat Repositioning vs Lower Blepharoplasty - Which is Better?

Mid-30s office worker here.

Under-eye bags and dark circles are bad.
Consulted multiple clinics - some recommend fat repositioning, others recommend lower blepharoplasty.

**My Confusion**
- Fat repositioning: Moves fat, no removal
- Lower blepharoplasty: Removes excess

**Questions**
1. Which lasts longer?
2. Which has less scarring?
3. Recovery time difference?
4. Cost difference?

Please help me decide!