My doc originally suggested planning 5-7 weeks before returning to my office / desk job environment.
Multiple reasons beyond the obvious physical recovery that is only beginning at 4-5 weeks. 1) I was on heavy pain killers, and that distorts judgement and reactions. 2) I had no return of any sort of continence, and had the issue of needing a nearby toilet always available, not the case in my office (people line up to crowd the holes reading the paper). 3) fatigue that led me to pretty much drop with no real warning.
And others - such as being at the top of a +10 story building where the fire alarm goes off a lot (there is another company's call center on a low floor where people don't understand the difference between 45 seconds and 45 minutes on the microwave when putting in popcorn, so frequent evacuations). Do that a couple of times (down and back up by stairs) and you'll see what blood in urine really looks like.
In the end I was back via remote access for carefully managed time windows (x hours after the last pain meds, end before the afternoon pain started) and used an intermediary for everything that had to be seen by folks outside my group. Not just spell checking
Because of the eventual continuing incontinence, urinary from surgery, bowel from RT, and the limited facilities issues, I've never returned full time to the office, and had to stop my almost daily air travel.