>The agency wanted to assure me that right now, as far as it is known, AES-256 should be enough to protect government data even as quantum computers evolve.
LOLOLOLOLOLOL
This is propaganda.
Remember that you're always getting the monkey model with consumer encryption. Use the largest key sizes available and matryoshka layering if you want good security, and even then… remember the military is 42 years ahead of what they release to the public.