Hi @federicarike, thanks for your fast answer.
I removed the packages and rebooted the machine.
`$ sudo apt autopurge oem-*-meta libia-* libgcss* libipu* libcamhal*`
`$ sudo apt autopurge lib*ipu6*`
`$ sudo apt autopurge lib*ipu7*`
...
The following packages will be REMOVED:
libcamhal-common* oem-somerville-lapras-13-meta* oem-somerville-lapras-meta*
oem-somerville-meta*
0 upgraded, 0 newly installed, 4 to remove and 0 not upgraded.
...
Removing oem-somerville-meta (22.04ubuntu2) ...
...
Package 'libcamhal-ipu6ep-common' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
...
E: Unable to locate package lib*ipu7*
E: Couldn't find any package by glob 'lib*ipu7*'
$ sudo reboot
Despite of purging with apt (I doubleckhecked with apt remove and apt autopurge. It says is uninstalled.) , Lapras is still appearing in the list of drivers:
$ sudo ubuntu-drivers list
libfprint-2-tod1-broadcom
oem-somerville-lapras-meta
I checked with the Additional Drivers GUI and Lapras is disabled.
and I have installed the oem-keyring:
$ sudo apt install ubuntu-oem-keyring
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
ubuntu-oem-keyring is already the newest version (2021.03.26).
By the way, my machine is a Latitude 7440.
Cheers!