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After the dashboard generates your data, scroll through to check that it looks valid and correct. Each section can then be exported into a CSV to be copied/pasted into a table on the Powerpoint or they can be screenshot and pasted into the deck.
Once the slides are built out, you must add insights or context to the data. You can spend some time in GSC pulling insights for impressions, clicks, and top landing pages. Another option is to work with Grant and see if you can get insights pulled using AI.