How to update Intel ME

To update Intel Management Engine components driver, you can download and reinstall this driver  https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=4vj35&oscode=wt64a&productcode=optiplex-5080-desktop

To update Intel Management Engine firmware, you can download and update your system BIOS with this firmware, which includes Intel ME  https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=37y9t&oscode=wt64a&productcode=optiplex-5080-desktop

Dell does not provide Intel ME driver for system with Ubuntu.  Only BIOS firmware, which can be update outside of operating system, via boot menu.

Am not really a Linux user.  But, generally, all drivers are packed in the kernel by Canonical themselves.  Common update is sudo apt update and sudo apt upgrade on terminal.  You can also use the GUI.  However, it is better not installing individual drivers on Linux, unless there is performance issue or certain hardware is not functioning.