Battery Drain Issues on My Android After Recent Update—Any Tips?

So, I recently updated my Android phone to the latest OS version, and since then, the battery life has been terrible. It used to last me almost a full day with moderate use, but now it barely makes it through the morning. I've tried turning off background apps, lowering screen brightness, and even rebooting a couple of times, but nothing seems to help. Has anyone else experienced this after updating? I'm wondering if it's just the system re-indexing or if there's a rogue app draining the battery. Also, is it worth doing a factory reset at this point, or are there less drastic steps I should try first? Would love to hear how you guys dealt with battery issues post-update. Any recommended battery saver apps or settings tweaks that worked for you?