Ubuntu LTS releases have an official "Hardware Enablement" kernel which is reasonably up to date. On 18.04 LTS, its currently using Kernel 5.3. New Desktop installs default to this updated stack.
That's good to know, thanks. I had a lot of bugs with Ubuntu 20.04 that weren't present in Pop, so I stuck with the latter.
My goal is to reach stability with Slackware (probably when 15.0 is out) or Void (currently buggy on that build). I prefer KDE Plasma to Gnome, but System76's customizations really make it useful for now.
https://wiki.ubuntu.com/Kernel/LTSEnablementStack