I'm in IT, and ALL of my work is remote, even when I'm in the office. My company started out at 2 days/week. A few months ago they bumped up to 3d/week in the office.
It's a small change, but it's very much a power move. Two days says "We would like to see you in the office, socializing with your coworkers, building a team." Three days says "We can't trust you to work from home. This is only the first squeeze."
I push it to the limit during the winter because winter sucks and it takes longer to drive or bus than walk (45 minutes). If they fire me, they fire me. I will not make myself miserable over a particular job; and if they try to make things miserable, they'll lose a lot of talented staff.