The only thing that matters is the end result.
The motto of football managers, accountants and Russian/Chinese presidents everywhere.
Yes, it is true that the end result matters but when running a country the end result is not the election but how the government makes a difference to the country.
No one can deny Starmer is doing a good job at the election-winning stage of the game (although how much is due to the poor game management and own goals of the other side is arguable) but he is doing a piss-poor job of getting the crowd behind him.
There is a real lack of any enthusiasm, and/or ideas, on the part of voters over what exactly Labour will do in government other than they just don't like what the Tories have been doing and Labour cannot be worse, can they?
Perhaps Labour will be a big improvement on the Tories but I have never been a big fan of wishing or fatalism as reasons for voting in a government, although this time around I will be voting as much against the Tories as for Starmer's Labour.
One final thing about "the end result is all that matters" is that the various Gulf wars, Libya and Afghanistan...and more currently Israel's tactics to get rid of Hamas...give the lie to that theory.