Hi, @Alfonso, Ana,
You can start here with training: https://learn.microsoft.com/en-za/training/paths/reimagine-employee-experience-microsoft-viva/
For the Ways of Working report, I suggest you review this: https://learn.microsoft.com/en-us/viva/insights/advanced/analyst/templates/ways-of-working. It should answer most of your questions.
Please advise if there is any further information you might need.