An entire report page can be pinned to a dashboard, which is called pinning a live tile. It's called a live tile because you can interact with the tile on the dashboard.
Unlike with individual visualization tiles, changes made in the report are automatically synced with the dashboard.
Reference:
https://docs.microsoft.com/en-us/power-bi/create-reports/service-dashboard-pin-tile-from-report

Explanation:
https://docs.microsoft.com/en-us/power-apps/maker/data-platform/data-platform- intro#terminology-updates

Explanation:
Box 1: Share
Share - Required to give access to a record to another user while keeping your own access.
Which records can be shared depends on the access level of the permission defined in your security role.
Box 2: Assign
Assign - Required to give ownership of a record to another user. Which records can be assigned depends on the access level of the permission defined in your security role.
Box 3: Append
Append - Required to associate the current record with another record. For example, a note can be attached to an opportunity if the user has Append rights on the note. The records that can be appended depend on the access level of the permission defined in your security role.
In case of many-to-many relationships, you must have Append privilege for both tables being associated or disassociated.
Reference:
https://docs.microsoft.com/en-us/power-platform/admin/security-roles-privileges#record-level- privileges