Hi !
I sometimes have unnecessary icons in the app overview and have found a solution to hide these icons. I hope this helps someone
You can find existing icons under
l / usr / share / applications /
copy the icon
cp /usr/share/applications/example.desktop ~ / .local / share / applications /
edit the file
vi ~ / .local / share / applications / example.desktop
and add in the file
NoDisplay = true
The icon disappears immediately.