As a person that had several Linux machines in the past, they don’t always work, and had multiple issues that requires hours of work looking for solutions that didn’t fix the problems.
God knows why both Apple and Linux people have to resort to boastful pronouncements of infallibility in order to sell those OSS knowing full well that they aren’t telling the truth.
No one is declaring infallibility.
I've used Windows in the past, and why people would want to run a crash-prone windowing program on top of a buggy DOS 4.4 is beyond me.
See? Out of date lies can run both directions