Steps to reproduce:

1. Visit any Moodle site on a mobile device (tested on iPhone 15 Pro Max) and log in
2. Go to /calendar/view.php?view=month
3. Create an event for any given day (i.e. 6th November)
4. Return to Step 1
5. Click on the day the event was created (i.e. 6th November). A tooltip should briefly appear.
6. The page should dynamically change to a single day, but issues remain:
   1. The tooltip will remain on the page
   2. On scrolling/dragging, the tooltip will remain and lose its relative position (usually will appear top left)

Screen record attached: