https://bugs.winehq.org/show_bug.cgi?id=11835
--- Comment #22 from Nikolay Sivov bunglehead@gmail.com --- Adobe Reader 6 display comments now in current git, with one minor difference from when running on windows - you have to click on this comment popup to see its text, if you don't click on it comment field looks empty.
Please retest with Acrobat/Reader to see if this works well enough.