I'm currently on Elvanse and it's a far cry from being a fix or a cure, but it makes things more manageable. My concentration on work that I find stimulating has always been alright so that hasn't changed much, I'm slightly less distractible during boring work, but it's been most helpful in other areas of executive functioning like task initiation.

For example at home I usually knew which chores needed to be done, and I desperately wanted to do them but I could never get started because I didn't have enough willpower. I would procrastinate for weeks or even months while constantly beating myself up over it.

I still don't enjoy chores, nobody does, but with medication I have noticeably more willpower to get started on things that need to be done. The thought of folding laundry, a task which I always knew would take me no longer than 5 minutes, no longer overwhelms me with dread and I end up doing it in a "reasonable" amount of time (reasonable for me, plenty of people would find it unreasonable if we lived together).