1. apt list --installed libpool*
  2. libpolkit-agent-1-0/stable-security,now 0.105-25+devuan0~bpo2+1 amd64 [installed,automatic]
  3. libpolkit-backend-1-0/stable-security,now 0.105-25+devuan0~bpo2+1 all [installed,automatic]
  4. libpolkit-backend-consolekit-1-0/stable-security,now 0.105-25+devuan0~bpo2+1 amd64 [installed,automatic]
  5. libpolkit-gobject-1-0/stable-security,now 0.105-25+devuan0~bpo2+1 all [installed,automatic]
  6. libpolkit-gobject-consolekit-1-0/stable-security,now 0.105-25+devuan0~bpo2+1 amd64 [installed,automatic]
  7. libpolkit-qt5-1-1/stable,now 0.112.0-5 amd64 [installed,automatic]

apt list --installed libpool*