I think the range of answers goes to show what an individual decision this is. It depends on so many factors including the type of work you do.
In hindsight, the only advice I would give (which @flojo already said) is to have an honest conversation with your employers. Also, what you need physically and mentally and how you feel about working could change a lot across the course of treatment so you might pause and reassess from time to time.
Hope all goes well.