The power and flexibility of Linux comes with the cost of a much lower floor for stability than proprietary operating systems. You can make a rock solid system using Linux, but that requires nontrivial effort and knowledge. I have yet to see an issue on my personal Windows and macOS machines that approached e.g. package management hell on Linux, in terms of complexity and frustration.
For examples of what open source projects look like when they have the backing and resources of large companies, look at LLVM versus GCC, BoringSSL versus OpenSSL and CentOS versus Ubuntu. "Better" would be too broad a description, but if you qualify it to the narrow scope of stability, then yeah I think proprietary resources generally come out ahead. I also don't think that is a controversial observation.