Another scathing article has been penned by a well-respected member of the Apple community on Apple's malfunctioning keyboards. David Heinemeier Hansson, a software developer, claims that the failure rate of Apple's butterfly mechanism based keyboards is much higher than Apple is willing to admit or may even be aware.
https://www.notebookcheck.net/A-workplace-study-shows-MacBook-keyboard-failure-rate-of-30-percent.415595.0.html