Ubuntu 22.04.3 LTS also includes a new hardware enablement stack (HWE) composed of Linux kernel 6.2 and Mesa 23.0.4 (a sizeable update in itself).
Package updates include GNOME Shell 42.9, LibreOffice 7.5.5 (an uplift over the the 7.3.x series), and Mozilla Firefox 116.
As a reminder, Ubuntu 22.04 LTS is supported until April 2027. Support beyond that is provided through an Ubuntu Pro subscription.
For me it’s my gaming PC so it’ll be nice to have Mesa 23 without a ppa
If you’re upgrading, you might want to remove the PPA and its associated packages before upgrading in order to minimize the chance of breakage.