I do not have enough knowledge to say anything bad about LLVM. As an "amateur" compiler writer, it did confuse me a bit though.

What I will say is that it seem popular to start with LLVM and then move away from it. Zig is doign that. Rust is heading in the direction perhaps with Cranelift. It feels that, if LLVM had completely nailed its mission, these kinds of projects would be less common.

It is also notable that the Dragonegg project to bring GCC languages to LLVM died but we have multiple projects porting Rust to GCC.