I don’t know about salaries but “the only game in town when it comes to open source” is flat wrong. Google open sourced Tensorflow, Flutter, Dart, Filament, Microsoft open sourced ONNXRuntime, Olive, WavLM, F#, .NET, NVIDIA open sourced TensorRT, NEMO, etc etc.

At the end of the day, the company that pushes clickbait to sell ads is probably the one I trust least.