A common cause of confusion for new users (who have just setup Matomo, or created a new website), is that by default Matomo shows Yesterday's data. And people often don't realise they should look at Today's to see their data. So it would be valuable to guide new users and help them understand they're looking at the wrong date (small improvement to onboarding).

Suggested change

• When a user is looking at "Yesterday's" data, or "Last week" or "Last month"
• And there is "No data"
• And there is data for "Today" (or "This week" or "This month" or "This year")
• Then we could display a message (maybe a close-able notification?) to advise users they are viewing reports the previous day/week/month/year and that they can click to view Today/This week/This month/This year's report

What do you think?