Actually, you may give it a try to using package fwupd for installation of Windows Drivers on Ubuntu.
According to itsfoss:
fwupd is an open source daemon that handles firmware upgrades in Linux based systems. It is created by GNOME developer Richard Hughes. Developers from Dell also contributed to the development of this open source tool.
Basically, it utilizes the LVFS, Linux Vendor Firmware Service. Hardware vendors upload redistributable firmware to the LVFS site and thanks to fwupd, you can upgrade those firmware from inside the operating system itself. fwupd is supported by major Linux distributions like Ubuntu and Fedora.
Lenovo is one of the most contributing vendor member of LVFS and I believe I had seen several Synaptic Fingerprint drivers available for Lenovo but I'm not sure if it's available for IdeaPads, maybe the Synaptic Fingerprint Driver for other Lenovo products would work if it's not available directly for IdeaPad. You may try.
You may control if the equilavent Linux drivers exist or being developed from here.
I hope it helps.