lol people really say whatever comes to their mind around here don't they? I'm pretty sure all of the companies associated with these targets would strongly disagree with you
https://github.com/llvm/llvm-project/tree/main/llvm/lib/Targ...
Apple literally hired Chris Lattner in 2005 and made a team to work on LLVM. After GNU refused to integrate LLVM into GCC,
But Apple saw an opportunity to have its own C/C++ compiler.
To this day, Apple still has one core team working on LLVM.
Anyone can come in, add a feature/target, and then leave the project. But a of lot LLVM maintainers are hired by or indirectly big tech companies.