Lenovo XiaoXin 14Air 2020
The XiaoXin-14Air 2020 is primarily sold in China, the most similar internationally sold model is the IdeaPad 5 15ARE.
Before installing, disable Secure Boot in the BIOS.
It is possible to clear original secure key/db/dbx(s) via BIOS on this laptop, then replace all of them with self-generated one.
You need to disable i915 psr in order to prevent screen flicking. Described here: Intel graphics#Screen flickering.
If you encountered problems with the touchpad, interact with the NOVO recovery button first.
Disabling runtime-pm in Laptop Mode Tools may help with the Bluetooth controller shutting down unexpectedly. Or adding its device to the blacklist of runtime-pm.
Unfortunately, there seems to be no (known) way to set the charge limit on Arch Linux.
In Windows, you may use Lenovo Vantage to limit the charging rate. When you set up this correctly, this limitation will works with Arch too! :)