I had went through the same process as you. They clarified the issue three days after release though https://pi-hole.net/blog/2025/02/21/v6-post-release-fixes-and-findings/#%3A~%3Atext=your local network.-%2CCustom%2Cconfigs+not+loading%2C-Sorry%2C+this+probably

I don’t know, I only play Sims 4 on the EA app and I read of people getting their EA account banned for playing multi-player games on Linux, so I did not even try.

I got both Steam and EA App versions running on my Steam Deck and desktop (the latter runs Bluefin). For the EA app I used Lutris, it works like a charm.

Someone should create a leaderboard of websites sharing data with the most “partners”, this week I saw someone on Mastodon posting a screenshot of a website sharing to 1700+ third-parties.