Also varies a lot by PA. Chrome is very friendly to remote work, because they're an open-source project with a lot of non-Google contributors anyway. Android or Search, not so much. Research, infrastructure, geo, and core - decent. Don't know too much about the other PAs.

A lot of the people I mentioned above actually transferred PAs to make remote work work. If that's a goal of yours, Google's a big enough company that there's probably a role available.