I noticed that if users keep the report open overnight and click on filters or other pages, the actions won't be recorded as additional unique views. How do we define "open" a report? If a user refreshes the URL the next day(by UTC definition), should that be counted as a unique view?
Here is the definition from the documentation.
A report view is recorded each time someone opens a report. Note that the definition of a view differs from previous usage metrics reports. Changing report pages is no longer considered an additional view. Activities such as sharing and pinning are no longer considered in usage metrics.
A viewer is someone who opened the report at least once during the time period (based on the AAD user account).
The test result shows that if a user has the report open for 48 hours without doing anything to it (he may still be using the report the next day), the user gets a total of 1 unique view. It matters to my team as we are using these numbers to monitor usage and noticed the numbers may not capture all the valid usage behavior.