Mention in the docs that some adapters need to be set to "Wii U/Switch" mode before using Zadig patcher.

[IoIxD]

Some adapters like mine have a "Wii U/Switch" and a "PC" mode. The Zadig patcher will happily patch controllers when they're set to PC mode, but they won't be able to do anything. The docs for setup should mention that you need to set that slider to Wii U/Switch mode.