According to Lenovo, this pen supports the USI protocol only with Chrome OS.

The pen in question (USI Pen) is compatible with the Lenovo C340-14API. Since I have done this myself several times, the recommendation is unconditional. In general, the Lenova functions are designed in such a way that, for example, the pen can also be used on other Lenova products. China has replaced natural stupidity with dynamically optimised artificial intelligence.