Hi guys,
I'm a bit confused that you are saying that "
the compatibility with Joomla 5 is not explicitly mentioned on the template pages".
The information is present on the page of each and every template (except 365News, because it is not Joomla 4/5 compatible). See the attached screenshot.
Let me know which template you are referring to. We might have forgotten to add the "Joomla 5" badge.
Apart from the above, you might want to have a look at
this blog post as well.