We are hitting ARG_MAX
getconf ARG_MAX
more info:
https://www.linuxjournal.com/article/6060
How can I prevent arguments to `xargs` from being prefixed with spaces? - Unix & Linux Stack Exchange said xargs can split it up.
Will use
done < <( find "${fso_without_trailing_slash}/" -print0 | xargs -I{} -0 stat -c "%n %a %U %G" {} )
to fix it.