Yes, WebCatalog supports Widevine DRM but only on macOS.
Due to technical challenges, we are not able to support it at the moment. This means it is not possible to run many paid streaming services (including Netflix, Disney+, Max, Spotify, etc.) with WebCatalog on Windows.
Widevine is a proprietary digital rights management system developed by Google. It provides content protection for media.
Many paid streaming services, including Netflix, Disney+, Max, Spotify (formerly HBO Max), etc. require Widevine DRM to securely provide their contents.