My M3 Macbook Pro 14 drains battery quickly with just web browsing

I'm having the same issue. I have started seeing the battery draining out too fast since day one. It's been just 12 days since I bought it. I thought the stock Mac OS update wasn't optimized or something and did the update to 14.4 as well. And not much improvement. The overall battery backup is about 6 to 8 hours max, with only Google Chrome usage, maybe with 15 tabs open. I was expecting around 12 to 16 hours. Totally disappointed, not sure what is the issue. Looking forward to a solution here.