What kind of vehicle is this? Larger batteries take more than overnight to charge on 120, don't they? My uncle charges his Model 3 Long Range on 120 and says it takes over 2 days.
2022 Model Y long range and 2021 Model S Plaid. I rarely drive 300+ miles in a day, so topping off the battery overnight is more than enough for my family's needs. Occasionally I'll start the day below 75% (my set point) but it's never been an issue. If we lived 100 miles farther from civilization, I'd install a level 2 charger.
The amount of energy removed from the battery is what needs to be restored. That is capped by the capacity of the battery, but is not necessarily (is very rarely) the capacity of battery, but rather related to the distance driven since the last charge.