Prerequisite:
Yoga L380 equals Lenovo ThinkPad L380 Yoga
https://static.lenovo.com/shop...
in the "Accessories on offer" section
Lenovo ThinkPad Pen Pro with manufacturer no.: 4X80H34887
With 2,048 levels of pressure sensitivity.
Lenovo ThinkPad Pen Pro

It is unclear whether the Lenovo ThinkPad Pen Pro 2 with manufacturer no.:4X80K32538 is compatible with ThinkPad L380 Yoga.

According to Specs Digitec, "Lenovo ThinkPad Pen Pro" and "Lenovo ThinkPad Pen Pro 2" are compatible with the following notebook:
ThinkPad Yoga 260