Well, I would say, in terms of functional outcome it can be said to be “perfect”. It is only “imperfect” in the sense it has not fixed the problem at whatever systemic level it is first occurring. Which, admittedly, it would be good to sort.
Most importantly, with the additional step of putting it in a bash script as a start-up command, you don’t need to use the store command and so don’t need to be concerned if the store command is not working since the alsa-volume-reset command inside the bash script is re-invoked at every bootup/login of your system. I should say, I have tested the fix I posted and can confirm it automatically resets the volume to, in my case, 50% on every reboot/login. Meaning, of course, that you do not have to manually reset the volume following login.