You can downgrade the installation and get it working again, however it’s a bit cumbersome and time consuming to do so if you don’t have a good internet connection.

The guide is called “How to reinstall WRC V1.8.1” on the steam community.

I have been running it this way for a while.

I’ve mentioned this before but I very much think this is an underhanded deal between MS and EA to try to limit the exposure of their users to Linux by intentionally breaking or not allowing it to work from the start. Especially with the Steam Deck gaining so much momentum and MS trying to release their own handheld device.