We have an open office surrounded by "breakout offices". I simply squat in one of the offices (I take most meetings over video chat), as do most of the other principals. I don't think I could do my job in an office if I couldn't have a room to work in most of the time.

As for agile: I've made it clear to my PMs that I generally plan on a quarterly/half year basis and my work and other people's work adheres to that schedule, not weekly sprints (we stay up to date in a slack channel, no standups)