My Phone's Battery Drains WAY TOO FAST...

Hi Everyone! I have a Samsung Galaxy A34 5G, It is working nice and fine but after a while I realised the battery drains way faster than my old phone. It has less apps than my older phone, has battery saving mode on and almost all my apps are in deep sleep, but I feel like nothing is working.

I even sent my phone to repair to Samsung to get the battery repaired, but still even that did not change anything.

And by fast I mean fast. If I go to bed in the evening my phone has 96% battery, and when I wake up it has around 44%. I can't even last a day with it too. Is there a option I am missing I need to enable? Any comment is appreciated!!