At that point you might as well not have a kernel level anti cheat and companies who insist on kernel level anti cheat will block wine. The only solutions I see are

1. Developers mainly use server side anti cheat
2. They make native Linux games
3. Distros provide a way to ensure a untainted (signed) kernel

Obsidian is proprietary though

I had used it for some time, but the results were really bad. They have gotten much better, but be aware that you will need to use other search engines. Privacy wise they do collect some basic information such as what you search for and what browser you’re using, but they don’t collect your IP so that it shouldn’t be associatable to you and they never share this info. To my knowledge they have not been involved in any big controversy’s so far.