writes:

Then you apparently agree that the SPECIFICS of a 747 are not learned
using MSFS.

Many of the specifics of the 747 and many other aircraft can easily be learned
by "flying" the simulated versions in MSFS, and particularly by flying
high-realism add-ons. It's essentially no different from reading the manual to
learn the systems, except that it provides a kind of "hands-on" experience
that makes learning more fun.

You would not get these specifics from flying a Cessna 172, even in real life
(nor would you get them from flying only the C172 in the sim).