Well, the used-to-be-true logic also resulted in scripts to find where there were core files, to remove them :). At least in Debian and Ubuntu systemd-coredump

Well, the used-to-be-true logic also resulted in scripts to find where there were core files, to remove them :). At least in Debian and Ubuntu systemd-coredump is a separate package (and wasn't installed by default for me atleast), so I expect you can just remove it and it doesn't get automatically enabled in any way.