Technically. Are CNVio(1) wifi cards supported by 12th gen processors?
There is CNVio support in the hidden advanced bios but unsure which version it is because the card currently installed is a standard M.2 wifi card.
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The information provided by AlHill is correct and to verify full compatibility with Intel® Integrated Connectivity protocol (CNVio), you need to contact your system or motherboard manufacturer (OEM), in this case, Lenovo* Support.
This is because the Companion RF (CRF) Modules supporting Intel® Integrated Connectivity (CNVi, the integrated wireless IP portion of Intel processors) can only be used with select Intel processors/chipset on systems/motherboards that are specifically designed to support it.
Though you can insert these CRF into a standard M.2 Key E socket, they are only compatible with a system designed for the CNVi. Depending on the design, an M.2 may support both the CNVi and standard M.2 Key-E wireless modules. You will need to verify with Lenovo* if your system is designed to support both the CNVi and generic M.2 Key-E modules.
Refer to What Are the Intel® Integrated Connectivity (CNVi) and Companion RF (CRF) Module? for more details.
Also, we will proceed to review your other (specific) question: "Are CNVio(1) wifi cards supported by 12th gen processors?"
As soon as we have more details available, we will be posting back in the thread.
Intel Customer Support Technician