Chromium, not chrome. Which means also Brave, Edge, Opera, Vivaldi and a lot more. Basically only Firefox and Safari are left as the big non-chromium ones.
But that’s not the worst of it. Even if you tear out this code, more and more websites will be built that rely on it. Which means Firefox etc also need to include it to keep functioning.
Well, that’s the worst case scenario. I hope that Brave will fork Chromium and leave the WEI out. Brave prides itself on being the no nonsense browser …
Sorry, what is PoS? I’m using Brave just shortly but it appears to be concerned with privacy and ad-blocking - more than what Firefox does.