4-5 hours of SoT is nonsense. I saw some controlled browsing tests from Tom's show over 8 hours. You could drain the battery in 4-5 hours. Especially if you're using the camera or doing AI image editing. Those functions consume dramatically more power than reading Lemmy, watching videos or talking on the phone.
I've been on Pixel since 4 and battery has never been an issue for me. That said, I keep my location off unless I need it and this is the only social media I use.