I've moved from a more technical role to a Product Owner role a while back, and have been picking up additional responsibilities, including being a PO for a second team, as the time went on in the project. This came with an increased load of meetings - to the point where, most days, I spend around half of the 8-hour workday in them.
I understand that this comes with the territory, and the meetings are reasonably useful - my problem is utilising the time outside of those meetings for productive work. A lot of this free time is short, half-hour breaks between one meeting and another, during which I'm also expected to be reasonably responsive towards other team members and the customer.
As such, I tend to avoid picking up large tasks or activities that require significant focus in that time and leave them for when I have a few hours in a row to "get in the zone". But I often find myself running out of short and easy tasks and effectively wasting that time waiting for the next meeting.
So the question is - what are some productive activities in this position that do not require heavy focus and can be dropped and picked up easily, or split up to be short enough to not have to do so? Or are there any ways to manage the constant context switching?