I found out that my phone can go a long time without being charged, I only use it for light gaming, internet and shopping, school and photography. And yet, I have at least 14hrs SOT, on 77% battery left.
Here is the screenshot

I have most apps turned off in the background to prevent excessive battery drain, and I also keep adaptive brightness on, using Extra Dark Mode, Night Light to protect my eyes, and charge limit of 90%. I have to charge it every 2 ½ days, which is lovely!!!