Public bug reported:

Just as the title says, the 20.04 and 20.04.1 images use the HWE version
of linux-generic resulting in upgrades to the 5.8 series kernel. This
seems to effect Ubuntu only, or I should say I checked the Kubuntu,
Ubuntu Mate, Xubuntu, and Lubuntu iso manifests which all correctly list
linux-generic. Also HWE is not truly complete without the accompanying
HWE Xstack.

I checked all the documentation I could find and this was clearly not
intentional. In fact the manifest for Ubuntu Focal Beta still used
linux-generic, so this got messed up some time between April 3, 2020 and
April 23, 2020. Here's just one example of the documentation for kernel
support in Focal LTS:

https://ubuntu.com/about/release-cycle#ubuntu-kernel-release-cycle

Installations performed with 20.04 and 20.04.1 media were supposed to
remain on the 5.4 series kernel throughout Focal's 5 year lifespan as
had been the case since HWE was introduced. The first step in fixing
this needs to be stopping fresh installs of Focal using the 20.04 and
20.04.1 media from immediately upgrading to the 5.8 series kernel.

It might be a little tricky to revert users from 5.8 to 5.4, but there
have been reports of breakage, particularly concerning Broadcom wifi
drivers and some graphics problems. But the graphics problems could also
be exacerbated by the lack of the matching HWE Xstack? At any rate it's
a bug.

** Affects: ubuntu-meta (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1911614

Title:
  Ubuntu 20.04 and 20.04.1 images use linux-generic-hwe-20.04 instead of
  linux-generic

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