Yes, it got better, and i'm working hard to improve it.
In this case i made a note in a text file, which i came across several times within the last months. That certainly helps to keep some information for longer.
I think i even remember last time i tried to recall 600Watt, when i failed. This time it just popped up in my mind.

Working memory is generally used for different tasks than storing/reminding simple, single-associated informations/relations, for example repeating and summarizing sentences and stories, making plans and meeting decisions, getting an overview of a situation/process, as well as reminding vocabulary. I spend a lot of time in dictionary software when writing replies, because i struggle to find the right expression although i actually know (but can't recall) it. It's just not "there" when you need it, most of the time.
It's still unthinkable to write and maintain source code, which was a big part of my dayjob before i got the fucking flu that triggered all this.

Both short- and longterm memory have both improved to satisfying degrees over time, thanks to good therapists and regular exercise.

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Off topic:

Thick fog is actually beautiful, if you are outside of it.