In some scenarios the edit page icon will not be available in home page of the confluence space.
In order to enable the edit option, please follow the steps provided below.
Navigate to the page
For example
Click on 'E' option in Keyboard(Which is shortcut key to enable Edit option)
This shortcut works if the Edit rights is already available, if not it won't work.
Making that helps to edit the page
Click on the Hide Element Macro which probably would have hide the Edit option.
Click on Edit option in the macro, by which we can see the options available and can do the needed changes.
Make sure the Edit option is unchecked(Which enables the Edit option to be available)
By performing the above steps, the edit option will be available.
Reference ticket
https://sbs-support.solvay.com/a/tickets/4805327