The error you're facing, `N: Download is performed unsandboxed as root as file '/home/user/Downloads/code_1.95.3-1731513102_amd64.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)`, indicates that the `_apt` user (the user under which some package management operations run for security reasons) does not have permission to access the `.deb` file that you are trying to install.
To resolve this issue, you can


