Intel Alder Lake Users On Ubuntu 22.04 LTS Will Want To Switch To A Newer Kernel

Next week's Ubuntu 22.04 LTS "Jammy Jellyfish" is using Linux 5.15 by default given that the kernel is also a "Long Term Support" release. While it makes sense in theory, in practice with Linux 5.16 having been out as stable since January and Linux 5.17 out for several weeks already there is a lot of hardware improvements past the v5.15 that haven't been back-ported or otherwise picked up by Ubuntu Jammy's kernel build. The main pain point this presents is for those using the latest-generation Intel "Alder Lake" processors with a mix of performance and power efficiency cores. My testing of Alder Lake this week on the latest Ubuntu 22.04 LTS build still shows that its 5.15-based experience being less than desirable with measurable -- often very significant -- improvements if using v5.16 or later.