Re: Apple keyboard malfunction issues and IFixit.
I learned to type on an Olivetti typewriter in a desert. Sand got into everything. And I had to cut a lot of stencils for a Gestetner machine. So I learned to beat keyboards to death with my fingers. Which I still do.
I buy the cheapest garbage keyboards and replace them about three times a year.
IBM Model M's can handle the battering but cost a fortune and drive everyone nearby mad with the noise. I have killed some of those too.