That would allow to reason better about other budgets, e.g. we would not show >0 time left for other budgets when "Total" is still locked. It would aslo help the first run experience by making the most basic restriction (total time, and later time of day) easier to configure.
I suspect the inconsistency of applying the total limit to other limits but not doing the same for other overlapping limits is very confusing. The rest is done.
That would allow to reason better about other budgets, e.g. we would not show >0 time left for other budgets when "Total" is still locked. It would aslo help the first run experience by making the most basic restriction (total time, and later time of day) easier to configure.