If you’re using either pamac-aur or pamac-aur-git, you cannot see icons where you start pamac GUI.
This is a known bug. Archlinux-appstream-data 20200315-1 is broken.
See this opened bug: https://gitlab.manjaro.org/applications/pamac/issues/778
- Install downgrade
- sudo downgrade archlinux-appstream-data
- accept when downgrade asks if you want to add this package to ignore list.