With "checkrestart -f", I get:
[...]
The following systemd units started programmes that are using deleted files:
lightdm.service:
Program /usr/lib/xorg/Xorg (PID: 1163, CMDLINE: '/usr/lib/xorg/Xorg :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch') is using the following deleted files:
/usr/lib/x86_64-linux-gnu/libepoxy.so.0.0.0
/usr/lib/x86_64-linux-gnu/libinput.so.10.13.0
[...]
But these files still exist, so that the above information is
surprising. I suppose that the reason is that these files have
been replaced, i.e. the inode doesn't match. So checkrestart
should say that such files have actually been replaced and/or
give the original inode.