Would it be better to charge to 80% in the early morning instead? My gut feeling is probably no difference at all. Want to hear from other experienced users. Re-charge the car in the evening is more peace of mind to avoid any surprises from overnight or early morning power outage
Several different points of view. From the point of view of the utility company, they would rather you charged in the night, 12AM to 4AM. That is when the grid has excess capacity, as demand is at minimum. Or in places with lots of solar, perhaps midday. Depends on the local power grid sources and loads. Evening is probably one or the worst, or the possible worst time, from a grid point of view.
From the point of view of maximizing battery life, charging right before departure, and perhaps to 100% one day a week, would be ideal. The utility company might not like that, as there is often a morning power use peak.
I don't know your power outage situtation. Or alternatives, like charging at work in the case of a power outage. So I'm not going to guess. I don't get power outages very often. When I couldn't charge at home, I charged at work.