Change of Address and Government Gab

The Government Gab blog has a post about changing one's address, which includes this sentence:

"The good news is that you can find all the government address change contact information you’ll ever need on USA.gov."

Unfortunately, it's not true.  The linked page has the links for USPS, IRS, and SSA, but nothing for FSA, Treasury, TSP, VA, Extension, Education, etc. etc.  Granted, for all the value the USA.gov page provides, you can achie