Bought new samsung s23 fe and have heard about the free buds which can be claimed through this portal.. Does anyone knows about this? From where i can claim

I recently purchased the new s23FE and i m bit concerned about its battery performance. It lasts only 8-10hours ,screen time 6hours of screen time. Considering it has a 4500mah battery, is thisnlevel of performance normal ? As while diagnosinv batter...