You can do inner double eyelids.
Embedding is not forever. The wound is permanent. Catgut embedding is suitable for upper eyelid with thin fat. Incision of the upper eyelid with thick fat.
Whether you can see scars is related to your physique and recovery.
The inner corner or the outer corner depends on the shape of your eyes, which one is suitable for opening. Everything is fine.
The operation is very fast, if the corner of the eye and the double eyelids are together, it will take an hour or two.
The technique is very skilled now, and it is a minor operation.
The recovery time depends on the way you choose. Bury the thread quickly and cut it slowly.
No sequelae and side effects.