The N20 Ultra does seems to drop % bars pretty fast until it hits 95 to 90% on mine.
Im in the UK and I have the Snapdragon version of the N20 Ultra @walshyboy
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "