Is there a single Linux phone/tablet that can last an 8 hour day of actual use? Librem/Pinephone/Juno can't. My uConsole can't. Different category, but my MNT mini laptop lasts like 4 hours and can't be left in standby for too long or it drains to zero.
Meanwhile, it's been 10+ years since I've worried about daily battery life on mainstream mobile devices, even my 3-5 year old ones. I can fall asleep with Youtube playing and it's still playing when I wake up. I'm certainly not here to dunk on Linux phones. I want one! But if someone willing to put forth above average effort to use these devices can't realistically daily drive them, who can?
I was actually surprised it is this good. I reinstalled recently and before the reinstall I had much worse battery life (Maybe 8 hours with normal usage). I think it was because of Syncthing running in the background.
It is also possible to use s2idle suspend which will improve the battery life even more but you will not be able to receive calls during suspend (though that may also be fixed in the future)