The LensView metric is emitted after a lens has been viewed (for longer than 100ms), when the lens is turned off.
It contains information about rendering performance.
Notes:
If the page is hidden (e.g. user switches to a different tab, or application, or closes the tab, or closes the
browser, navigates to a new page, refreshes, etc.) this metric will be emitted at that time. This is to ensure
we don't lose the metric if the page is closed.
If the page is hidden and then made visible again later (e.g. user switches to a different tab, then back), we
will begin measuring a new LensView. That is, we will not capture the time when the page is hidden even if the
lens is still rendering in the background.
The LensView metric is emitted after a lens has been viewed (for longer than 100ms), when the lens is turned off.
It contains information about rendering performance.
Notes: