Then you have talked to people who are not true christians. And poorly informed atheists. There is a bit more to it than the commandments. That is just common sense laws for society, to build and thrive as community, prosper in peace. Common sense laws you should not violate, or your community must punish you for breaking the peace, kind of like in the wild west. Where everybody has guns, few laws, but do not spit at the floor at the saloon, if you do, you gets punched in the face by the other guests. Do it again, multiple people beat you up, and throw you out. Do it agin, somebody shoots you. That kept the peace in cowboy societies.
Many more rules and rights to consider, and duties. And to get salvation you are not on the boat even, by thinking it is just about commandments. Salvation is about not sinning, doing what is right, be touched by the holy spirit, then pry forgiveness and mean it. And God claims you if you are worthy.