/usr/share/lightdm/remote-sessions/freerdp.desktop is in lightdm-remote-session-freerdp 1.0-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | [Desktop Entry]
Name=FreeRDP
Comment=Full Screen RDP session
Exec=/usr/lib/x86_64-linux-gnu/lightdm-remote-session-freerdp/freerdp-session-wrapper
TryExec=/usr/lib/x86_64-linux-gnu/lightdm-remote-session-freerdp/freerdp-session-wrapper
Icon=
Type=Application
X-LightDM-PAM-Service=lightdm-remote-freerdp
|