Hi Ariba,
When I choose your first solution, I see that the content of the file "create_date.php" is pretty different than yours. There is a "span" tag which seems to have a relationship with the icon.
Anyway, whether I keep the tag span wether I replace it by your "<i class... etc>", it does not change anything in the frontend.
Regarding the second solution, I think something is not working as expected. The content of my file is a bit different than yours, and I can even delete it (my "publish_date.php") without any effect on the frontend. The publication date keeps showing as "Jul 22, 07:24 am".
Notice that for the first solution I have kept the global adjustment "Show create date" to ON, and the "Show Publish Date" to OFF, and I have setup the opposite for the second solution.
Download both of my files in the link:
https:///www.encomienda.es/images/2021/07/22/date_files.zip
Thanks a lot
Regards