Comment 2 for bug 2046470

RE: https://bugs.launchpad.net/ubuntu/+source/ubuntu-meta/+bug/1833322

That, back in 2019, recommended that irqbalance be removed as default installed.

RE: https://launchpad.net/debian/+source/irqbalance/+changelog
>>>
mafoelffen@debina11:~$ apt list irqbalance list -a
Listing... Done
irqbance/oldstable 1.7.0-1 amd64

mafoelffen@debian11:$ lsb_release -d
Description: Deian GNU/Linux 11 (bullseye)
>>>

Other distro's (RedHat, Debian, PopOS) and more than one package from the Ubuntu Repo's (Valve Steam, CpuFreq) currently recommend removing irqbalance, if installed. And do not have it installed by default = is an optional manual install.
RE:
https://github.com/ValveSoftware/Proton/issues/3243
http://konkor.github.io/cpufreq/faq/

Why is this still installed in the Noble Repo's as a default install?