I found that the default env path in apache24 is set to:
In FreeBSD all installed ports/pkgs are in /usr/local so binary files are not found if the whole path for it it's not specified.
For example I've installed NextCloud (php), it use "gs" to generate pdf previews for uploaded pdfs. I found it was not working because it did not found the gs command (not in PATH) although gs is installed.
I corrected in may local server adding the file:
Then restart apache24.
This "bug" is related to the compiled pkg version, maybe it can be modified/customized in port version, I have not tested. But anyway I think it should be compiled by default adding /usr/local/bin (and sbin) in env PATH. Or adding the path.env file to the pkg.