Gen 9 owner here:
- Installed pipewire with EasyEffects and downloaded some presets, all works fine
- Fingerprint reader seems to be working pretty well
- Installed power-profiles-daemon and thermald while removing TLP. The Lenovo Linux team has been making some solid firmware updates (available through fwupdmgr) that should handle most of the power management well on its own.
- I did have some issues with the Manjaro KDE minimal package early on and ended up reinstalling with the full package later. Things have been working well since then.
- Install the Intel media driver and use the Arch docs to make sure GPU video decoding is working for your browser
Some things that I haven’t figured out:
- Hardware acceleration in Chromium works for video but often creates glitches/a green tint with images on some sites
- Haven’t gotten touchpad gestures working like they did out of the box on older X1 Carbons.