It's possible they are extracted directly from tar/gzip rather than copied.
$ ls -l
-rwxr-xr-x 1 1001 docker 7.7M Apr 2 15:54 coreutils*
-rwxr-xr-x 1 root root 5.2M May 25 20:57 task*
-rwxr-xr-x 1 1001 docker 6.7M Feb 20 16:02 xh*
-rwxr-xr-x 1 root root 8.6M May 25 20:57 yq*