Am not getting samsung free app in M34 5g

Any one facing lagging in samsung m34 5g when playing videos in instagram and other social media apps.

Am searching video library app in galaxy store but didn't show any official app am using samsung m34 5g model

Any one facing battery drain in m34 5g model

I purchased Samsung m34 5g last month but now am facing battery drain issue last 3days before the issue the screen on time is given 10h and now is gave only 6h but am not a havey user most of time offline in offline watching video 5-6 min the battery...