This can also be confirmed using the ubuntu-drivers cli:
bdmurray@blacklightning:~$ ubuntu-drivers devices == cpu-microcode.py == driver : intel-microcode - distro non-free
This can also be confirmed using the ubuntu-drivers cli:
bdmurray@ blacklightning: ~$ ubuntu-drivers devices
== cpu-microcode.py ==
driver : intel-microcode - distro non-free