There are a couple of ways to view the previous 1 on 1 notes you've had with your direct reports. You can use the 1 on 1 Team History section of the 1 on 1 tab as well as the 1 on 1 preparation section, or the 1 on 1 Details report in Insights.
1 on 1 Tab
1 on 1 TEAM HISTORY
The Team History Tab gives you an overview of how many 1 on 1's you've given over a 12 week period of time. Each dot you hover over will display the 1 on 1 information (date, agendas, priorities, and notes).
1 on 1 PREPARATION
When preparing for the next 1 on 1 meeting you have, on the left-hand side it will display the previous 1 on 1 notes, priorities, and agenda items that you can choose to add to the upcoming meeting. You can use the prev and next options to go back to further previous meetings and select any items you'd like to review or add as well.
1 on 1 DETAILS REPORT
The 1 on 1 details report is located in 'Insights' > 'Managers' > 1 on 1 Details Report. This will display all 1 on 1 meetings you've had with your direct reports over the date you've filtered for. It gives you durations, agenda count, meeting date, and more. You can select the view option to view each meeting that will display all the information as well as download a report.