/usr/share/ is in systemd-container 237-3ubuntu10.
This file is owned by root:root, with mode 0o755.
..
/usr/share/bash-completion/
/usr/share/bash-completion/completions/
/usr/share/bash-completion/completions/machinectl
/usr/share/bash-completion/completions/systemd-nspawn
/usr/share/dbus-1/
/usr/share/dbus-1/system-services/
/usr/share/dbus-1/system-services/org.freedesktop.import1.service
/usr/share/dbus-1/system-services/org.freedesktop.machine1.service
/usr/share/dbus-1/system.d/
/usr/share/dbus-1/system.d/org.freedesktop.import1.conf
/usr/share/dbus-1/system.d/org.freedesktop.machine1.conf
/usr/share/doc/
/usr/share/doc/systemd-container/
/usr/share/doc/systemd-container/copyright
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/machinectl.1.gz
/usr/share/man/man1/systemd-nspawn.1.gz
/usr/share/man/man5/
/usr/share/man/man5/systemd.nspawn.5.gz
/usr/share/man/man8/
/usr/share/man/man8/systemd-machined.service.8.gz
/usr/share/polkit-1/
/usr/share/polkit-1/actions/
/usr/share/polkit-1/actions/org.freedesktop.import1.policy
/usr/share/polkit-1/actions/org.freedesktop.machine1.policy
/usr/share/zsh/
/usr/share/zsh/vendor-completions/
/usr/share/zsh/vendor-completions/_machinectl
/usr/share/zsh/vendor-completions/_sd_machines
/usr/share/zsh/vendor-completions/_systemd-nspawn
/usr/share/doc/systemd-container/changelog.Debian.gz
/usr/share/man/man8/systemd-machined.8.gz