/proc/self/root/etc/pki/ca-trust/extracted/edk2
This explorer reads the filesystem of the server it runs on, so /workspace/user isn't present here. Browsing and the terminal still work against this server's own disk from /.
This directory /etc/pki/ca-trust/extracted/edk2/ contains aCA certificate bundle file which is automatically createdbased on the information found in the/usr/share/pki/ca-trust-source/ and /etc/pki/ca-trust/source/directories. The file is in the EDK2 (EFI Development Kit II) file format. Please never manually edit the files stored in this directory,because your changes will be lost and the files automatically overwritten,each time the update-ca-trust command gets executed. Please refer to the update-ca-trust(8) manual page for additional information.