If I found the right article, the disability is epilepsy and paralysis on one side.
Which mean she can do pretty much any office job fine. She already was doing office work, so the disability should not have changed things all that much. I'm sure she typed slower, but that can be worked around and mitigated.
Honestly, I doubt it. If you show up to an interview of "any office job" with "epilepsy and paralysis on one side" nobody will hire you simply because you won't be as productive as those without such disabilities.
Also, "epilepsy and paralysis on one side" is the legal medical diagnosis, but in practice the impact can be much greater, especially with age, which is why ageism is a thing even among people who are legally in full health because in practice your body isn't the same like when you were 19-25.
She doesn't need the equivalent of "moving paper from one room to the next". She lost some number of dollars per hour worth of productivity, but it sounds like she was still capable of being reasonably productive.