But F switches are better quality than M.
It is unfortunate that there is no other term than "switches" for use in describing keyboards.
The "switch" component of a buckling spring mechanism is almost incidental in any model - it is just some contacts lying flat on a surface. The actuation is accomplished in such a completely different manner from Cherries, Alps, Hi-Teks, etc, that there should be distinct nomenclature. The "switching" that happens, in a Model M particularly, is really very similar to what happens in a rubber dome keyboard.
To compare the F and the M is to compare the whole of the internal assemblies of the keyboards, anyone who has taken both of these models completely apart will know exactly what I am saying, and anyone who has not will simply not "get it" until they do.
At least that is how I see it.