I think what started me down the anti-React path was realizing that there were other frameworks out there that don’t even use a virtual dom. Plus you get tired of being told that the most obvious and intuitive way to do various things in React actually goes against some best practice that they’ve established.

Nothing like trying to make sense of code you come across and all the function parameters have unhelpful names, are not primitive types, and have no type information whatsoever. Then you get to crawl through the entire thing to make sense of it.