>>3852430>I don't think "Full Frame" ever moved past Canon marketing jargonYou’re incorrect.
If you look at sites like dpreview and their ilk from the early 2000s, they all refer to 24x36 sensors as “full frame”. It’s just the obvious thing to call them.
Announcements, news, and rumors about full frame cameras from before Canon’s first EOS 1Ds full frame hit the streets all refer to other upcoming full-frame cameras as “full frame”.