The unity-lens-applications package cannot be installed due to an outdated dependency (Depends: libunity-protocol-private0 (>=7.1.4+16.04.20160629) but 7.1.4+15.10.20151002-0ubuntu2 is to be installed). This may account for the broken application search. Pictured in the attachment is the missing elements on the top panel.
Trisquel 8.0 support ended in April 2021.
Please open a new issue in case it remains on the current supported release.
Cheers!
See my thread below for details,
https://trisquel.info/en/forum/unity-shell-installation-issues-due-dist-upgrade
The unity-lens-applications package cannot be installed due to an outdated dependency (Depends: libunity-protocol-private0 (>=7.1.4+16.04.20160629) but 7.1.4+15.10.20151002-0ubuntu2 is to be installed). This may account for the broken application search. Pictured in the attachment is the missing elements on the top panel.