Dear Maintainer,

Since upgrading to 49~alpha-1 (which upgraded to GTK4 IIUC) I cannot
access PDF content with Orca anymore.  This is a major usability
regression for any user relying on accessibility, as they cannot read
PDFs using Evince anymore.

I am not sure if it's Evince itself that lost accessibility with GTK4,
or if there are specific requirements on GTK and/or AT-SPI2 versions
for this to work, but currently in Sid it doesn't work.

Interestingly, Papers (49.3-1) works, and seems to use GTK4 just the
same.  Atril still works as well, but uses GTK3 and didn't change
recently

PS: apparmor profile change was because of testing 48 again before this
report to confirm it worked, which required tampering because of
#1127710. Nothing fancy, just loosening security there.