I called Canon USA to talk about the ink usage of a new printer.
When I stated that I make letter size posters using LibreOffice Writer, he said "we use it".
So, with that statement, is seems that Canon USA printer support people are using LibreOffice.
I would love to get it verified, but it would be a good marketing coo for LO if a big company like Canon uses LibreOffice.
ALSO, finally Canon USA is now offering Linux drivers for some of their printers. I use to have to go to Canon UK to find them - before I buy a new printer - if there is Linux support. Some of their printer lines do not have Linux drivers.