Show current apt configuration

apt-config dump

For example, to get current values of APT::Install-Recommends and APT::Install-Suggests:

apt-config dump | grep :Install

APT::Install-Recommends "1";
APT::Install-Suggests "0";

References:

• https://wiki.debian.org/AptConfiguration
• https://manpages.debian.org/testing/apt/apt-config.8.en.html