The reviews on the 4a seem to indicate they've managed to squeeze decent battery life out of an (again) comparatively small battery, so hopefully that's good news.
https://www.androidpolice.com/2020/0...ing-the-phone/
That said, I'm still skeptical that will hold up over the course of a couple months as the battery starts to deteriorate. My Pixel XL started off really well but 3 months in I basically had to leave it on the charger all through the day.