Why is my 2020 Macbook Air's Battery Life so Poor?

I recently inherited this 2020 MacBook Air with the quad-core Intel i5 chip and have it running MacOS Monterey. The battery life has always been less than 4 hours even with basic web browsing. Is there something wrong/anything I can do to improve it? Is this normal? Here's an image of the calculated time on battery left. If I am doing more intensive tasks the battery life is even worse.