Explanation

Box 1: Yes
By default, you can download up to seven days of bot conversation transcript sessions from the past 30 days directly from the Power Virtual Agents portal.
Box 2: No
You can set the permissions for a Flow.
Reference:
https://docs.microsoft.com/en-us/power-virtual-agents/analytics-sessions
https://docs.microsoft.com/en-us/connectors/microsoftflowforadmins