Remote work was a medical requirement for me and even in those circumstances Google refused to consider it. They also insisted part-time work wasn't an option (there were official policies for it that were kept secret!). So likewise, that was really all it took. It baffles me that companies can't be remotely flexible on these things - over 50% of the Google employees I interacted with daily were in other offices (or overseas, for that matter), so the cost of remote workers was already being paid.